We called it, the Traveler. And its arrival changed us forever. Great cities were built on Mars and Venus, Mercury became a garden world. Human lifespan tripled. It was a time of miracles. We stared out into the galaxy and knew that it was our destiny to walk in the light of other stars...but the Traveler had an enemy. A Darkness which had hunted it for eons across the black gulfs of space. Centuries after our Golden Age began, this Darkness found us, and that was the end of everything...But it was also, a beginning
Beef Gate: Going too far off the beaten path in some areas will turn you right into high-level enemies that are likely to be immune to all of your attacks.
BFG: The Heavy Weapons category, consisting of rocket launchers and heavy machine guns.
Big Dumb Object: The Traveler is a mysterious sphere that kickstarted humanity's Golden Age and continues to protect and empower humans in some capacity.
Black Mage: The Voidwalker Warlock subclass, with a heavily offense-based skill tree and numerous area-effect abilities.
Bloodless Carnage: With a T-rating, the game is a bit hemophobic compared to its contemporaries. Certain enemies give some brief splashes of green blood that doesn't persist in the environment, but that's about it.
Boom, Headshot: Naturally, these deal Critical Hit bonus damage to most enemies (Vex being the main exception). The Gunslinger Hunter subclass is designed around this, gaining bonuses when killing enemies with headshots (such as quicker reload speed or instant cooldowns with throwing knives).
Call Back: If your entire team manages to score ten kills with no one dying in a PVP match, you will unlock the "Strength of the Wolf" medal - making a reference to the "Law of the Jungle" trailer.
Charged Attack: Fusion Rifles, a category of specialized weapons which charge up for a time and then release a powerful blast of seven or so energy projectiles, capable of killing a player instantly if all seven shots land, and excellent for blasting through Elite Mooks' shields when utilizing the correct type of elemental damage.
Citadel City: The city underneath the Traveler, which has walls and plenty of defenses against encroaching invaders who seek to break in.
City of Adventure: Though the players will be able to venture out into space, the only safe place for humans to live is a single city being protected by the Traveler.
Cooldown: The player's two main abilities are limited on this, although certain classes have skills that can help reduce it. Supercharged Ability has a long and slow one, but can be reduced with critical hits, kills, ability use, and so on.
Deadpan Snarker: During the gameplay trailer, the Ghost drone, when activated in an abandoned run-down complex it remarks: "We always visit such cheerful places". Bonus points for being voiced by Peter Dinklage. He's almost pretty snarky in-game during missions or when jumping into events.
Deflector Shields: Averted for the Guardians - players have regenerating health, but it's justified as rapidly self-repairing armor as opposed to energy shielding. Many Elite Mook enemies however, do have regenerating energy shields in the conventional sense.
Elemental Rock-Paper-Scissors: Averted. There are three types of elemental damage (Void, Solar and Arc), but they're not strong against each other. They're, instead, strong against Deflector Shields of the same type. So an enemy with blue shields will be exceptionally weak to Arc, an enemy with red shields to Solar, and an enemy with purple shields, Void.
First Episode Resurrection: The player character. The opening of the game has you being resurrected by your Ghost, who explains that you've been dead a long time and might not understand the world as it is now.
The Thunderlord is also very, very flawed, apparently. According to the website, "“The ammunition is some kind of monster that they wouldn't normally use... The use of electro-static rounds over this amplitude has been prohibited due to their volatility.”" Not only that, but the quote from the drawing board about how to design it is “At any moment, this gun should feel like it might blow up in your hands.” In other words, handle with care.
Fragile Speedster: The Hunter begins with a bias towards this trope, with high Agility but low Armor and Recovery. Later on, players can distribute their stats using their subclass skill trees as per their preference, potentially negating initial shortcomings.
Harmful to Minors: Downplayed somewhat, when the Player Character meets the Speaker they are told that parents used to tell their children stories about The Darkness to frighten them, but they don't do it anymore because the children are already frightened.
Heroic Sacrifice: It is said that the Traveler sacrificed itself to save humanity. However, it's not clear if it's currently dead or alive.
Hollywood Tactics: The "Law of the Jungle" trailer shows Guardians engaging in firefights while standing out in the open, surrounded by enemies and with no cover of any kind. It's not clear whether the events depicted are "real", a story the Dad told to his son, a distorted memory, entirely unrelated to the Dad but true, or something else. But it sure looks cool.
Holy Hand Grenade: Almost literally. All of the Guardians' special powers are derived from the Traveller, which includes - yes... - all of their grenades.
Hover Tank: The Interceptor, developed by the Cabal but usable by players.
Humans Are Survivors: Humanity has been reduced to a single large city, but the fight is far from over.
Kamehame Hadoken: The Voidwalker Warlock's Nova Bomb super ability, a large energy ball attack capable of vaporizing rooms full of enemies and wrecking armored vehicles in a single blast.
Mighty Glacier: The Titan begins with a bias towards this trope, with high Armor but low Agility and Recovery. Later on, players can distribute their stats using their subclass skill trees as per their preference, potentially negating initial shortcomings.
Insistent Terminology: The developers call the game a "shared world shooter", rather than a full MMO. The game seems to function more like Guild Wars or Borderlands series in that some areas are instanced to the player and their party while others are always shared.
Lost Technology: Comes with the territory of a spacefaring civilization being reduced to a single city on their homeworld. The overall approach seems fairly pragmatic and similar to BattleTech, where old tech is actively rediscovered, refurbished, and reverse engineered.
The Cryptarchs are a faction entirely devoted to this, studying old-world artifacts and using them to make equipment for Guardians.
Magic Knight: All of the Guardians. Warlocks have a bit more focus on the 'magic', and Titans on the 'knight' aspect of the trope.
No Flow in CGI: Averted, especially in regards to the Hunters' cloaks. Even in the equipment screen.
Not Quite Flight: All classes have enhanced aerial mobility skills - Hunters get a Double Jump, Titans get a Jet Pack, and Warlocks get a floaty "Glide" jump. Warlocks and Bladedancer Hunters can also trade in their super jump abilities for Teleport Spam once they've leveled their subclass trees far enough.
The Paladin: The Titans, being heavily armored futuristic knights wielding the Light of the Traveler against the massed forces of Darkness. In lore, they built the wall around the Last City, and gave their lives to defend it. As is typical of paladins, many of their abilities are focused around close-quarters combat and enhanced resilience.
In PvP, a bar that looks like the shield bar on normal enemy foes, represents the first bar of a Guardian's health bar. The health bar itself is cut into 3 segments, showing a form of urgency to the player the less they have.
Skill Scores and Perks: Each weapon has its own talent tree with perks that enhance its function and appearance. So in addition to getting better loot, players can make the loot they do get even better.
Squishy Wizard: The Warlock begins with a bias towards this trope, with a high health Recovery stat, but low Armor and Agility. Later on, players can distribute their stats using their subclass skill trees as per their preference, potentially negating initial shortcomings.
Stone Wall: The Defender Titan subclass, with a skill tree focused on defensive or counter-offensive abilities. The Defender's super ability, called Ward of Dawn, which has no direct offensive utility, but instead generates an unbreakable bubble shield around the user, protecting the Titan and his/her allies while granting them passive buffs.
Super Mode: Several of the Guardians' Super abilities manifest as this, including the Hunter's Golden Gun and Arc Blade abilities, and the Sunsinger Warlock's Radiance.
Used Future: Played with, in that most of the major industry that produced new things has long since shutdown and been abandoned. However, among the survivors in The City, maintaining, reverse-engineering, and upgrading old technology has become something of an art form. As a result, many of even the standard-issue weapons are old models, lovingly refurbished and keep operational with delicate care. Some of the more exceptional or unique weapons are in turn hand-assembled devices, kitbashed from older things but well-finished and sometimes given elaborate plating and engravings as individual as the artisan gunsmith that built it.
Vestigial Empire: Humanity itself, which previously controlled huge amounts of space during the Golden Age of Humanity. However, some sort of calamity has reduced them to a single city besieged by hostile aliens, with much of their Golden Age technology lost.
The Fallen are also an example, though it isn't yet clear just how they fell.
Wide Open Sandbox: There is supposedly a vast universe to explore and any number of ways to go about doing so.
Including flying your own personal spaceship to the rings of Saturn, riding around on the Destiny equivalent of the Speeder Bike from Star Wars, or just poundin' some ground through Elder Scrolls scale locales.