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Skill Scores and Perks

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In Real Life, the human brain acquires new knowledge and puts it to use via a spectacular cascade of electrochemical reactions taking place across a heavily networked biological cell grid. Learning and improving one's skills is a continuous, life-long process, while expertise in one field often proves unexpectedly useful in other, seemingly unrelated domains. But complex neuroscience has no place in video games, because a) it violates the Rule of Fun, b) programming such a system is next-to impossible, and c) it runs a high risk of spawning a murderous AI on your computer.

Instead, tabletop and video games — particularly Role Playing Games and games with RPG Elements — narrow the areas of human knowledge down to a handful of quantifiable "skills" that are relevant to the plot at hand and whose advancement and effects can be defined in terms of Game Mechanics. At the start of the game, the players are handed a list of these skills and a few "skill points" to distribute among their characters' abilities, with more points awarded later on for completing the game's objectives. Once a skill is learned, the character (usually) can never forget it, except deliberately and with a full points refund.

There are two common ways to define character skills in the Game System terms: skill scores (a.k.a. "skill levels") and perks (a.k.a. "feats" and "traits"). Following table outlines their main differences:

Skill Scores Perks
Improve basic in-game actions Unlock new moves and unique bonuses
Can be leveled up multiple times
(anywhere between 3 and 100)
Usually cannot be leveled up,
although some perks may be upgrades of others
Skill levels have index numbers, or
generic labels ("novice", "trained", "master")
Each perk or upgrade has a unique identifying name
No skill levels are technically needed to use basic actions Active perks must be learned before using them
Follow a linear improvement progression Often form branching "skill trees"
Each skill level "unlocks" the next one, but
they may be capped by another stat or Character Level
May have prerequisite perks, character levels,
skill and stat scores
Improved by spending Tech Points, by repeated use,
or automatically with each Character Level
Usually acquired by spending Tech Points,
occasionally through Nonstandard Skill Learning
Higher skill levels may cost more than the lower ones More advanced perks may cost more than the basic ones

Skill scores and perks often coexist side-by-side, mixed-and-matched in a myriad of ways, and many games (especially contemporary RPGs) go out of their way to blur the line between the two.

See also The Six Stats, Skill Point Reset, No Stat Atrophy.

Video game examples:

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    Action Games 
  • In ANNO: Mutationem, Ann can upgrade her "Talents" through a skill tree with three sections that require Grombitz and Upgrade Points. "Basic" increases her stats of Health, Attack, and Defense. "Tactical" gives improved effects to her weapons and attacks. "Expertise" grants her new moves she can use in battles.
  • Batman: Arkham Asylum and its sequels have a "Waynetech" section where after getting enough experience points, the player can purchase improvements for Batman, in his equipment (both upgrades, including to the Batsuit's armor to reduce melee and ballistic damage, whole new items such as Sonic Batarangs) or his fighting skills. Batman: Arkham Origins even tries to shake up a bit by both designing the section with skill trees, showing an intended progression, and sending a few upgrades to a 'Dark Knight System' where they will be unlocked as the player performs a series of challenges.
  • In Control, you earn ability points by completing missions. These let you buy skills on a skill tree that takes an increasingly large number of ability points to buy. However in the game, there'll be enough opportunity to buy every skill available as there's no New Game+.
  • Nuclear Throne has perks in the form of "mutations", earned by leveling up by gaining rads (the game's version of XP). Most characters get a pool of fournote  randomly-selected mutations. These mutations include abilities like doing damage every time you're hit, gaining more health from medkits and upgrading the effects of certain weapons. At max level, or Level Ultra, each character gets a choice of twonote  character-specific "Ultra Mutations", each one designed to benefit a different playstyle.
  • Remnant: From the Ashes has "traits" which are a combination of skill scores and perks. They improve basic in-game actions and can be levelled up to 20, but all have unique identifying names and must be unlocked through various means before you can start putting points into them. Each of the three starting classes starts with three traits: Vigor (maximum health), Endurance (maximum stamina), and one class specific trait (which the other classes can unlock later), as well as a certain amount of points in each. Every time you level up, you get one trait point, and there are 50 traits in total, meaning you'll have to get all the way up to Level 200 in order to max out them all. Thankfully, the amount of XP required to level up never increases, so it's not as bad as it initially sounds. Picking up a Tome of Knowledge, which aren't terribly uncommon, will also instantly grant you a trait point.
  • Saints Row (2022) has a rather short level cap (only Level 20) that works as you'd expect, but to compensate, every level grants the Boss with a new abilitynote  or increases their maximum Health and Flownote  as they progress. The Perks, on the other hand, are only unlocked by completing Challenges, and in turn, those provide some very powerful bonus abilities that range from going Guns Akimbo to an ability that increases your damage output the quicker you are at landing headshots in quick succession.
  • Unlike other FromSoftware's Soulsborne games, Sekiro: Shadows Die Twice doesn't have you increasing your stats. Instead the points you get from levelling up, go towards a perk system where you learn things such as a passive ability that lets you to recover health after stealth-killing someone or special moves like a leaping double strike. You have initially 3 skill-trees to put points in, but can unlock more in the game.

    Grand Strategy 

  • In Crusader Kings every character has both a set of Attributes (numeric stats, some visible, some not) and Traits (perks modifying the stats and their Relationship Values with other characters), all of which govern that character's behavior and which may change by over time by events, random or not.Crusader Kings II adds education and life focus systems to steer each character. Crusader Kings III adds perk trees to each life path.
  • Total War: Three Kingdoms: This game, takes Romance of the Three Kingdoms characters and fits them into a class system: Champions, Vanguards, Strategist, Commander, and Sentinel. Each of these classes has an associated skill attribute, unit type they specialize in, and Wu Xing element. Following Wu Xing, the elements compliment or clash with one another, which is represented in the building chains of settlements. This all besides the characters having perk trees that effect how they govern in court positions, as provincial governors, and lead their armies, in addition to their performance in combat.

    Platform Games 

  • Ghost 1.0 has five skill trees where the player can spend skill points to unlock various perks. Each perk provides an active or passive benefit, and also increases an attribute associated with its corresponding tree: Chassis perks increase Ghostís max HP, Boogan perks increase her maximum ammo, Jacker perks increase Jackerís hacking speed, Ghost perks increase the damage output of possessed robots, and Nakamura perks increase the drop rate for health kits.
  • In Reachin Pichin, depending on what Pichin evolves into, he has different skills and abilities. Some are passive and activate automatically, with others must be activated manually.

    RPG — Eastern 
  • In Capella's Promise, characters can spend SP to learn and level up different Specialties, allowing them to learn new skills. However, each time a Specialty's level is raised, the cost for all specialties go up to discourage too much skill diversity.
  • Eternal Radiance: Celeste can receive passive skill upgrades through the Talent Tree system. Her tree is divided into two categories: offense and defense. Spending enough points in one category is required for more advanced skills, but specific skills don't need to be learned.
  • In the Etrian Odyssey series, your adventurers start with three skill points and gain another for each level they gain, and these are used to unlock and improve your party's skills. Advance planning is recommended, because if you allocate them poorly, your party will struggle with upcoming challenges. A Skill Point Reset function is available but comes at the cost of some of your party's levels.
  • Final Fantasy
    • Final Fantasy X is famous for the Sphere Grid and its potential flexibility, with nodes that either increase certain stats or provide a new active ability. Each node requires the appropriate sphere to activate it and certain areas of the grid are separated by locked nodes of various levels. The original version have a somewhat linear progression path for each character(with the exception of Kimahri, who starts in the center with access to almost every other character-specific grid area) giving them a more pre-determined role early on, but can access other parts once they complete their paths or unlock the lock nodes separating each area. The International version adds a second grid layout, Expert, in which every character starts at the center of the grid and are able to go anywhere they wish, though overdrives and weapons remains unique to each character.
    • The License Board is the successor to the Sphere Grid, used in Final Fantasy XII. Aside from teaching abilities, characters can only use certain equipment once they've been unlocked on the Board. Quickenings are also found on the board, as are the Espers once you best them in battle. Later releases introduce 12 different License Boards (one for each of the Western Zodiac). Once the player assigns a board to one character, you can't have another character use the same board.
    • The Crystarium system Final Fantasy XIII consists of class-and-character-specific (mostly linear with minor sideways branching) perk trees, whose nodes have increasing "crystogen point" costs. Most nodes provide bonuses to either Strength, Magic, or Health, but some unlock class/role-specific moves. In Final Fantasy XIII-2, each character has only one linear "perk tree", but its nodes are technically empty slots where the player can place perks (bonuses or abilities) of any of the six available classes (up to 99 per class) by investing crystogen points.
  • Fire Emblem: Three Houses has both skill levels and perks. Skill levels range from E to S+ and concern your units' mastery of the five types of weapons (Swords, Lances, Axes, Bows, and Brawling), two types of magic (Reason and Faith), three types of "movement" (Heavy Armor, Riding, and Flying), and Authority. Skill levels are gained linearly by studying (in the Monastery phases) or Stat Grinding on combat missions: weapon and magic skills are improved by repeated use of corresponding weapons and spells; "movement" types, by attacking or defending as an armored/cavalry/flying Character Class; and Authority, by fighting with a Battalion attached and using its Gambits. The main effect of having higher skill levels is qualifying for powerful Prestige Classes, as well as unlocking various perksnote . The perks are unlocked by gaining certain skill levels (every unit has a different set of them) and can be subdivided into passive Abilities and active Combat Arts (gained from weapon skills) and Spells (from magic skills). Each unit has a unique, always-active Personal Ability, passives granted by its current class, plus up to five Abilities freely chosen by the player from among those gained from skill levels and mastering classes.
  • In Forever Home, characters can spend PP to learn and upgrade skills. The complete list of skills aren't available until the characters pass experience level thresholds though.
  • Kingdom Hearts 3D [Dream Drop Distance] has Spirits and their Ability Link system. By training or fighting alongside your Spirits, they gain Link Points which are used to unlock skills or increase Sora and Riku's stats. Each Spirit has a different link board, granting different skills and perks. Most passive skills are only available to you if your Spirits have them on their board.
  • Naufragar: Crimson: The Fusion system allows the player to allocate AP to learn both active and passive skills, and all AP allocation can be refunded.
  • In the remake of Nocturne (RPG Maker), the two main playable characters don't level normally. Instead, they stockpile experience and spend it on learning and upgrading skills from a skill tree. Upgrading skills provides extra stats while learning new ones don't, meaning the player has to strike a balance between learning and upgrading to get a versatile, yet strong party. The catch is that spending a certain amount of EXP forces the character to level up, which can prevent the player from meeting Brave Clear conditions.
  • RealityMinds: The playable characters have skill trees, which can be filled in by spending SP and "strong stones." These tree nodes include combat skills, passive skills, and stat increases.
  • Sacred Earth - Alternative: Instead of learning new skills upon leveling up, characters learn skills by allocating AP. Some skills have to be learned before others and some skills, like Konoe's auto-revive, cannot be unlocked until the story is advanced.
  • Uncharted Waters: New Horizons features a combination of seven skill scores (ranging from Leadership, through Knowledge, to Swordsmanship) which increase your performance as a fleet captain, and five perks: Celestial Navigation lets you auto-sail to any known port, Cartography allows you to sell maps, Gunnery drastically improves combat performance, Accounting tells you best places to sell your goods, and Negotiation lets you haggle for better prices.
  • Valkyria Chronicles uses a perk system called Potentials. All characters have potentials based on their personality/background, in addition characters who AREN'T tank commanders have class-based potentials as well. Characters gain more class-based potentials as they level up (it's the entire class that levels up, not just the individual) and this type of potential is always positive. The personality/background potentials are mostly unlocked, with the final potential unlocked either through interviews or events in the game. This type of potential can either be positive or negative, except uniquely in the case of the tank commanders and Alicia who only have positive potentials. Furthermore Welkin is the commander of the squad and has a special ability called Orders. When he gets enough experience, he can go to a graveyard to meet an old man who'll teach him a new order until Welkin learns every orders.

    RPG — MMO 
  • Star Wars: The Old Republic features a two-fold upgradable perk system, split into class-specific Abilities and Prestige Class-specific Talents. Abilities are mostly active powers that can be purchased from or upgraded by class trainers for credits after reaching certain levels. Talents are mostly passive bonuses with some unique active powers thrown in that form three loosely connected specialization-specific trees. Each level beyond 10 gives you a Talent point to buy a new talent or upgrade an old one. In addition, there are the Crew Skills, which allow crafting and resource gathering and are improved by using them, though you are limited to three at any time.
  • Star Trek Online
    • Skills and traits are selected by the player and provide mainly passive bonuses in combat. Your skills increase the potency of your ship and away team powers (for example, Starship Graviton Generators improves gravity-related bridge officer powers such as Tractor Beam and Gravity Well). Attributes apply only to the character who has them. Individual species have inherent attributes (e.g. Bajorans get a bonus to HP heals on the ground), and player characters can select from a pool of additional traits (bridge officers have the latter built-in), some of which are built-in and vary by class, while others unlocked as lockbox prizes or by leveling up crafting schools. The number of selectable traits you can equip increases from three at first level to nine at level 60.
    • Completing kill and damage accolades provides small passive bonuses to damage and toughness. For example, destroying 200 Borg ships and getting the "Nanoprobe Immunity" accolade gives a 2% damage boost against Borg ships, and taking 15,000 kinetic damage with your captain (primarily taken from melee attacks) for the "Punching Bag" accolade gives +2 to your away team's kinetic damage resistance.
    • The Reputation system, completed by spending marks earned by playing PVE content. Each Reputation has four space perks, four ground perks, and one active power (as of deason 9 a total of four of each, in any combination, can be active at any time). They also include projects to craft unique gear and stores where you can buy special weapons.
    • Tier 5-Upgraded and Tier 6 starships include the "Starship Mastery" mechanic, which unlocks four tiers of perks specific to that ship as you earn XP while flying it. Additionally, unlocking Tier IV Starship Mastery on a T6 ship grants access to a unique starship trait that is available while flying other ships. Four starship traits can be active at a time.
  • Dungeons & Dragons Online still uses the same Skill-and-Feats system as its tabletop counterpart but has diverged to include 'enhancements', which are like mini-perks that you can select with points earned at certain points between character levels, and function much the same as the tabletop version's prestige classes.
  • World of Tanks has skills and perks available for tank crew members on reaching 100% of their primary qualification. Skills take effect immediately while perks only take effect on reaching 100%. Most provide major benefits, with some, such as Sixth Sense for the commander (alerting when spotted, with three seconds delay), being considered One Stat to Rule Them All, while others are considered a Dump Stat due to Crippling Overspecialization from being only useful on some tanks or in select circumstances, being made redundant by equipment or provide too little benefit to begin with.

    RPG — Western 
  • The Fallout series has a skill system based around seven static attributes (ranging from 1 to 10), skill scores (measured in percent and upgraded at every level), traits (essentially perks with both advantages and disadvantages that you pick at the beginning of the game), and learnable perks (which you can take every three levels). Fallout 3 took out traits and made perks more common (every level), then Fallout: New Vegas added them back in while lowering the perk rate (every other level). Fallout 4 drastically alters this, fusing perks and skills into a perk tree similar to Skyrim.
  • The Elder Scrolls:
    • The first four games in the main seriesnote  all have similar variations of a Class and Level System, with a few quirks varying by game. Oblivion, while still staying in line with the series' traditional system, adds Perks for the first time, which are unlocked by reaching certain levels in skills: e.g. a Power Attack at Blade 25, no shield wear-out at Block 50, jumping off water surface at Acrobatics 100, etc.
    • Skyrim overhauls the series' system, doing away with classes and attributes entirely while moving into the territory of this trope. It loosely borrows the Perk system of its Bethesda Fallout sister series, expanding the available perks to an entire tree (one per skill score); perks now have prerequisite perks and corresponding skill score levels and can be bought and upgraded with perk points (gained with every Character Level up) once unlocked.
  • Dragon Age:
    • In Dragon Age: Origins skill scores ("skills") and perks ("talents" and spells) exist in parallel, although the latter are much more important. Eight (11 in Awakening) skills can be leveled up four times, providing passive bonuses to anything from persuasiveness, through pickpocketing, to combat efficiency. Talents, meanwhile, are distinct moves, auras, passives, and upgrades grouped into "trees" of three (four in Awakening) linear four item-long branches (mages get spells instead of talents but they work the same way). There are also class- and specialization-specific perk trees. In addition to being part of a skill tree, new perks have stat and (in case of weapon talents) skill level requirements. Talent points are gained at every level, and skill points, every three (two for rogues) levels.
    • Dragon Age II does away with the skills but expands the talent trees to branch out more.
    • Dragon Age: Inquisition follows the DA2 model with combat moves, but complements it with the so-called "Inquisition Perks", which represent the special services offered by the title organization (of which the Player Character is the boss) as it grows in power and influence. These range from unlocking additional dialogue options, to improving basic in-game actions (like letting all rogues in the party pick tougher locks), to combat bonuses, to crafting resource boosts.
  • Alpha Protocol uses a system similar to Mass Effect in that your skill points both improve your proficiency directly and, at predefined points along the tree, grant access to special actions such as Bullet Time or HUD indicators as to enemies' location, disposition, and facing. Various other perks are granted for fulfilling story conditions.
  • Being based on the d20 System, Star Wars: Knights of the Old Republic feature both skill scores ("skills") and perks ("feats" and "powers"). Skill scores range from hacking, through persuasion, to first aid and are upgradeable multiple times per level (skill points gained depend on the class and the INT stat). General feats (mostly combat moves, but also skill bonuses) usually come with one or two upgrades and can be taken every other level (depending on the class). Powers can only be learned by the Jedi at a rate of one per level (more for some classes). Powers associated with the Light or Dark Side of the Force additionally gain bonuses from your Karma Meter standing.
  • Pillars of Eternity has Skills, Abilities, and Talents. Each character earns six Skill points each level, and every new skill level costs one point more than the last; however, different classes and backgrounds give free levels in certain skills at character creation. Apart from improving basic in-game actions, Skills are used alongside Attributes in dialogue and scripted interactions. Abilities are class-specific perks that can be taken at every odd Character Level, while Talents are (mostly) class-independent perks earned at every even one. Abilities and Talents can be passive boosts, active abilities, or modal effects. Talents are further subdivided in Class (class-specific bonuses), Offensive (improve attacks), Defensive (improve combat defenses), and Utility (everything else). Some Talents can only be acquired as rewards for completing certain side quests.
  • The Witcher has an expansive skill tree focusing on four primary attributes (Strength, Dexterity, Stamina, Intelligence) and talents (Signs, steel sword, silver sword). Talents have a prerequisite attribute (i.e. you cannot learn lvl.3 "strong" sword style without lvl.3 Strength), and the Signs additionally have to be unlocked at Circles of Elements first. Individual perks are leveled (bronze, silver, gold), as are skill points (silver points are earned from level 15 onwards; gold ones, from level 30). Lastly, there are some perks that cannot be learned normally but have to be unlocked by drinking unique "mutagen" potions.
  • Diablo II features a hybrid skill score/perk system, wherein each class has three unique skill trees consisting of several tiers of perks. Individual tiers are unlocked one by one at certain character levels, after which any number of skill points (gained at each level and from some quests) can be invested into any unlocked perk, increasing its efficiency and often giving bonuses to more advanced perks derived from it. On a side note, Diablo II has one of the earliest implementations of the aura-type perks (with its Paladin class).
  • Mass Effect has a hybrid skill score/perk system wherein "talents" encompass both passive (armor, weapon) and active (biotic & tech attacks) skills. Talents can be leveled up multiple times, increasing their efficiency and unlocking additional perks and even further upgradeable talents at certain levels (forming an implicit skill tree); Charm and Intimidate talents are additionally capped by your current Paragon and Renegade scores, respectively. Mass Effect 2 and Mass Effect 3 replace them with "powers"—active combat skills, which are essentially perks with up to five (mutually exclusive at level 4+) upgrades available for each of them. Most talents and powers depend on the character's class and are available from the start, but some are only unlocked after certain story events.
  • The original Deus Ex features both skill scores and perks (dubbed "augmentations"). Skill scores are upgraded using skill points acquired in small heaps by completing objectives, have four levels (Untrained, Trained, Advanced, Master), and improve your performance with different types of weapons, or non-combat actions (lock-picking, electronics, medicine, etc.). Augmentations are picked up as items on missions and implanted into Denton's body slots, giving him new abilities, and can likewise be upgraded up to level four with "upgrade canisters".
  • Deus Ex: Human Revolution merges the two subsystems from the original game: you don't have any skill scores anymore, but still gain small heaps of "Praxis Points" here and there, with which you directly unlock individual augmentations from the Tech Tree (justified by that all augs are already built into Jensen and only need to be activated).
  • Path of Exile has an enormous perk tree consisting of over 1300 nodes available to each class, although all nodes are passive bonuses (active skills are instead imbued into items). Furthermore, a majority of nodes are unspectacular permanent bonuses to one of the character attributes (strength, dexterity, intelligence), but buying them is required to get to the juicy, named perks that provide significant combat advantages, plus a Mastery Skill that lets you select from a choice of passive bonuses shared between the same category. In addition, there are also slot that lets you socket Jewels into it, which essentially work as craftable passives. Unique Jewels can interact with or modify the skill tree, such as converting one stat to another within a radius to another or grant a marginal bonus based on how certain skills around it are allocated, or even add an entire cluster of passive skills, which can have its own smaller clusters. There is also a smaller skill tree for Ascendancy classes and one for Atlas passives (which expanded from multiple small trees to one huge tree), which improve the effects of specific map modifiers, master missions, or boss drops to make them more rewarding.
  • Divinity: Original Sin has a complex skill system containing skill scores, two different kinds of perks, and active powers. The Abilities (skill scores) are improved by investing points that you get (a steadily growing number of) at every level. Talents are a type of perks that have prerequisite Ability levels and can be learned every four levels from the third onwards. Traits are "Personality Powers"—small bonuses granted for consistently role-playing Player Characters in dialogue (e.g. a Romantic character has a chance of finding treasure anywhere, while a Materialistic one gets a Crafting skill bonus). Finally, Skills (active powers) are spells and combat techniques learned from books; they have prerequisite character levels and a character can only learn a number of them limited by the corresponding Ability level (unless it's maxed out, then there is no cap on Skills).
  • Increasing skill ranks in the later Might and Magic work something like a perk system — skills can be made better by putting more skill points (which are — mostly — gotten by levelling up) in them (increasing dependent numeric aspects) or by being trained to a higher rank (Expert, Master, Grandmaster) if you fulfil the requirements and have the money to pay the trainer. What a higher skill rank does depends on the skill and the game, but several do give new abilities (Master Bow in VII makes bow fire two arrows per attack, Grandmaster Dodge makes the skill usable while wearing leather armour...), in line with this trope.
  • Kult: Heretic Kingdoms uses both skill scores and perks in parallel. Alita has four basic statistics (Melee, Ranged, Magic, and Speed) which are rated with letter grades (B+, C-, etc.), but also as Attunements which grant specific bonuses (better chance of critical hits, more loot, etc.). Attunements are earned, but are also associated with equipment.
  • Tyranny has skills, which are increased by use or increasing the associated attributes at level-up, and talents, one point of which are gotten every level and which are divided into trees.
  • GreedFall has three types of hybrid skills/perks. The Skills proper are mainly combat abilities and are arranged in a relatively straightforward Sphere Grid, consisting of major perks (costing 2 Skill points to unlock, though the three most powerful cost 3 each), which grant you new powers or access to a new weapon type, and minor ones (1 point), which boost the major ones. Three of the six "root" major perks are unlocked for free by the choice of "class" at the start of the gamenote , and the player gains 1 Skill point with each Character Level, as well as by visiting the natives' Skill Altars scattered throughout the island. The second type is the six Attributes, which are mechanically similar to The Six Stats in that they have a linear progression (from 0 to 5), improve basic attacks and actions, and allow the character to equip better gearnote ; the player gets one Attribute point to spend at level 1 and one more every three levels thereafter. Lastly, there are the Talents, most of which function as a sort of "key" abilities, unlocking shortcuts in the game world and offering unique dialogue optionsnote ; Talent levels are also linear (0 to 3), and you get a Talent point at level 1 and one more at every fourth level thereafter. Talents also get stacking bonuses from equipping certain gear (except Intuition) and keeping a Friendly companion in the party (except Lockpicking). Finally, there is an option of Skill Point Reset with the extremely rare Memory Shard consumable, which completely resets and refunds all Skills, Attributes, and Talents.

    Shooter Game 
  • Equipable Perks are a major part of the online multiplayer aspect of the Call of Duty franchise, with effects ranging from extra endurance, to extra ammo, to more accurate aiming, etc.
    • The Call of Duty: Zombies side mode has "Perk-a-Colas" in their stead, such as "Juggernog", "Speed Cola", and "Double Tap Root Beer". Known for the rather catchy jingles that the machines play.
  • No One Lives Forever 2 includes a skill score system that represents various aspects of being a super-spy (stealth, marksmanship, gadgets, etc.). Each skill score can be upgraded four times, giving various passive bonuses to the respective basic action (hiding, shooting, breaking codes, etc.). Each level costs progressively more skill points, which are obtained from completing missions and finding manuals scattered throughout the game.
  • The Jedi Knight series features a number of upgradeable Force Powers. In the first game and Jedi Academy, you gain skill points after every mission (first game gives bonus points for finding secret locations, while JA has optional missions to gain extra points) and can spend them on any power you want. In Jedi Outcast, on the other hand, force powers are upgraded automatically according to a fixed progression after every mission (you can still distribute points freely in the multiplayer, though). The powers are further subdivided into Neutral, Light, and Dark, and in Academy, your mentors will have comments if you prefer one Side over the other.
  • PAYDAY 2 has skill trees and perk trees, which are your only source of special inventory items (Medical bags, ammo bags, mines, turrets, and hacking devices) and passive abilities and some stat boosts. Most of these skills are passive, triggering when you interact with something or shoot / get damaged in a certain way, while others increase your stats. The highest-level skills are game changers, but some experts recommend evenly spending skill points across all skill trees. Most perks increase your stats, each tree focuses on a specific stat (Health, shields, speed, etc.), the perk tree inventory item allows you to suit up from clothing to kevlar, and only one perk tree can be selected at any time. The main difference is that skills are available at higher levels but must be paid with in-game cash to be activated, while the perks are permanently unlocked through earning a LOT of experience points, even if the character is at the level cap.

    Survival Horror 
  • In The Evil Within, Sebastian can collect a substance known as Green Gel and use it to upgrade his abilities. These abilities are divided into four categories: Life Gauge, note  Sprint, note  Melee Damage, note  and Syringe Recovery. note  This Green Gel can also be used to upgrade Sebastian's weapons, such as their firepower, accuracy, the amount of ammo he can carry, etc. The sequel follows suit, although weapons can now be upgraded separately via weapon parts and includes a few additional abilities, such as stealth, to the tree.

    Turn-Based Tactics 
  • In XCOM: Enemy Unknown, each soldier can select one of two perks at every rank (which is basically a disguised XP-based Character Level) except Rookie, Squaddie, and Major (only one perk is available at each of the latter two). The perks are usually split between two core functions of a class: Assault chooses between offensive and defensive perks; Sniper, between shooting more precisely and more often; Heavy, between More Dakka and more Stuff Blowing Up; Support, between healing and other supporting tasks (smoke grenades, cover fire); and MEC Trooper, between front-line offense or supportive tankiness. Additionally, there are psionic powers, which only a few soldiers can acquire, and more powerful psionic abilities are unlocked by using the more basic ones.
  • XCOM 2 lets specialist characters pick and choose skills from a skill tree by spending AP, both from their own stock and X-COM's AP pool.

    Visual Novel 
  • The Dating Sim Shira Oka Second Chances includes a hybrid skill score/perk system as part of its Character Customization: you gain experience points during the game for succeeding at certain tasks or selecting certain choices and can use them to upgrade your stat scores or "quirks". Upgrading your stats (Intelligence, Fitness, Creativity, and Charm) enables you to build them up faster and get better grades, whereas upgrading your quirks follows a 3-tier system (you start out with universally negative quirks — Lazy, Jinxed, Scatterbrained, Amnesiac — that only hinder you and can upgrade them twice to actually positive ones) and gives you additional dialogue options and in-game benefits (e.g. upgrading Lazy to Determined decreases the probability of you showing up late to dates). Finding a balance between upgrading stats to keep your grades high enough and quirks to give you more XP opportunities is essential to getting through the game with a minimum number of Groundhog Day Loops.

Examples from other media:

    Anime and Manga 
  • Many non-RPG Mechanics 'Verse mangas provide various skill rankings in the supplemental materials, such as:
    • Claymore Databook offers rankings for most main characters from the series in following stats/skills: Yoki, Agility, Muscular Strength, Spirit, Perception, and Leadership. These are ranked E through A (plus S for extremely overpowered individuals like Teresa), though Clare is the only character who made notable improvements in them during the Time Skip. There are even kind of "perks", coming in form of special attacks like the Windcutter or an ability to heal other Claymores.
    • Attack on Titan Guidebook gives each main character a ranking on a 1 to 10 scale in following skills: Battle Skill, Initiative, Strategy, Teamwork, plus a unique "skill" that usually ranks 10 out of 10 and reflects their personal quirk, ranging from Eren's Passion to Christa's "Heavenliness".
    • The JoJo's Bizarre Adventure series has "Stand Stats", diagrams that quantify various attributes of each Stand in the series via a letter grade system ranging from E through A. Stand Stats are comprised of six attributes, including Destructive Power, Speed, Range, Stamina (the ability for a Stand to maintain its presence or effects over an extended period of time), Precision (the ability for a Stand to apply its influence/effects upon a specific target), and Developmental Potential (the ability for the Stand to power up or gain mastery). Broke the Rating Scale also applies on occasion, for when a Stand's abilities are hidden (? Grade), virtually omnipotent (∞ Grade), or unapplicable to the stat in question (∅ Grade).
  • My New Dungeon Life has the "job" system which gives inherent corrections to improve a task based on that job and levels by doing things related to the job. This is not absolute. For example, Deek, the main character, gets a "Cooking" job to level 15 by using a secondary skill to collect cooking ingredients. His top maid has a cooking skill of 10, but makes dishes fit for royalty while Deek can only make basic stews and breads, because that's pretty much the only recipes he knows.

  • In Cactus Canyon, having a higher Rank increase the player's scores during the Quick Draw and High Noon modes.

  • Instead of leveling up, players in Roll To Dodge: Savral gain unique skills or perks after enduring for a variable number of turns or dying. Unlike other examples, the players have no say in what these skills or perks are, since the game master doles them out based on how the player performs.

    Tabletop Games 
  • GURPS is a classic example. Character traits fall fundamentally into four distinct groups: attributes (the four base stats), skills (based on said attributes and then improved individually), advantages (perks) and disadvantages (essentially 'anti-perks', handicaps to saddle one's character with for more character depth and bonus points...okay, primarily the bonus points).
  • Dungeons & Dragons was late to this particular party for once. The now-familiar skills-and-feats scheme was introduced only with the game's third edition; before then, support for skills for non-thief characters was noticeably delegated to optional rules or even altogether absent, and "perks" existed almost solely in the form of racial and class abilities that might get unlocked with advancing level but generally didn't involve much choice. Moreover, both pre- and post-third edition these skills were and are handled more like perks themselves, with characters able to choose to have a given skill or not but little in the way of means to improve it further after that. The fifth edition made feats an optional mechanic that replaces generic stat increases and reduced their selection, while giving each feat additional properties, so they are no longer detached abilities or bonuses but entire expansion packs for the character.
  • Both the Storyteller and the Storytelling System are based around "traits", which are basically a hybrid mash-up of stats ("attributes"), skill scores ("abilities" in oWoD, "skills" in nWoD), and upgradable perks ("advantages"). The latter include both storyline perks (like background) and active abilities (like the vampiric Disciplines). Attribute scores range from 1 to 5, abilities/skills and advantages from 0 to 5. Occasionally, levels up to 10 may be allowed. Trait levels are acquired by spending character points.
  • The Serenity Role Playing Game has a nontraditional version of this. Skills and perks are purchased from a shared point pool at character creation and changeable at GM discretion (the RPG does not use a Class and Level System). There's a set of core skills that can be used with dice up to d6, then specialized into sub-skills that can use from d8 to d12+d2. Perks, called traits, are broken down into assets and complications and provide various bonuses and penalties.
  • Ironclaw has skills and Gifts, adding skill marks increasing the size of the dice rolled. The biggest changes between editions included the consolidation of several skills and changing many specific skills to Gifts, as well as instituting flat costs of 4 XP per skill mark and 10 XP per Gift rather than varying costs, and making spells Gifts.
  • Dragon Age features Focuses and Talents, which vaguely correspond to Feats and Skill Scores. Focuses represent a particular expertise in a narrower subset of certain Attribute checks (e.g. "Perception: Seeing") and give a flat +2 bonus to rolls where they apply. Talents have three levels, each of which gives the character a unique gameplay advantage. New Focuses can be learned at every new level (alternating between primary and secondary class Attributes), while Talents can be acquired or upgraded every other level.
  • Apocalypse World and its many hacks use a unique variation of perks called "moves": apart from the "basic moves" available to all player characters (which describe which stat to roll for in specific situations and what the roll results mean), each additional move is character/playbook-specific and can range from switching out stats in basic moves (e.g. "roll for intelligence instead of charisma when trying to manipulate someone") to giving them entirely new abilities. The design is purposefully open-ended to allow seamless invention and integration of new moves into play.
  • Lace & Steel has a large number of skill scores subdivided into Social, Courtly, Knowledge, Military, Movement/Perception, Crafting, and Magical categories (but no perks). To use a skill, you need at least level 0 (no modifier) in it, which you get for free in a handful of universal skills, plus in a number of skills associated with your social class (e.g. nobles get free Social and Courtly skills). You can buy additional skill levels (including level 0 in new skills) with Tech Points at character creation to increase the bonus to corresponding rolls, although non-class skill levels cost more than class ones, and higher levels cost more than lower levels. In-play, however, skill levels are gained via Stat Grinding: at the end of an adventure you roll for every skill you've used in its course to gain XP in it, increasing it by a level if you reach that level's cost (same as at character creation).
  • Fate games have a variety of different ways to refer to its Skill Scores (most have Skills, but Fate Accelerated uses Approaches instead, while Jadepunk has Professions) and even a couple of different names for Perks (most use Stunts, but Jadepunk has an Asset system instead that modifies the Stunt basis), but most of them exhibit this. Some also have a third thing, Extras, used to build things like magic systems, super-powers, or giant robots.
  • Planet Mercenary has 40 Skills, most which have Specialties that allow for rerolling one of the three dice when using a subset of the skill. Carbosilicate Amorphs get additional secret Specialties that unlock actual abilities.
  • Red Dwarf: In addition to basic stats, each character has skill points to allocate to a variety of skills. These skills are quite broad, ranging from weapon specialisations to astronavigation skills to even mundane hobby skills. Each character can also take a number of traits, such as rank or celebrity status, or those that affect personality, such as self conversation or being a smeghead.
  • Warhammer Fantasy Roleplay
    • Skill scores are ranked from 0 to 100 based on the character's pertinent Attribute score and special training, representing their chance of succeeding at an average task. They include basic skills (e.g.: Gossip) that can be used without proficiency at a penalty and advanced skills (e.g.: Healing) that require the user to be trained, and are rolled for skill tests.
    • Talents are character features with a discrete, static benefit. This might be a numerical bonus to a skill or attribute (possibly a situational one), a new way of using a skill (e.g.: letting a melee attack deal a Tap on the Head), or an entirely new ability or feature (e.g.: making the character a Supernatural Fear Inducer).
  • Star Trek Adventures: The six Attributes are personal stats, the six Disciplines are skill scores, while Talents are like Perks, giving alternative gameplay options on specific Tasks. Traits, Values, and Focuses can also be used to modify Tasks: an unfamiliar species Trait might make treating an illness more difficult, a Value that is applicable to a given situation allows a PC to spend Determination to gain an advantage, and rolling for a Task if a character has an applicable Focus scores an extra success.


Alternative Title(s): Skill Score, Perk, Skill Point, Skills And Perks