* BestBossEver: Common consensus among the endgame fanbase indicates the Twilight Archmage to be this, be it from his design or the fact that he's the only Shatters boss that cannot be broken through GoodBadBugs.
** Nightmare Colony is also catching on for having a difficult yet fun battle that incorporates a number of new and unique mechanics, as well as dropping good loot at a fair rate, including three powerful UT Abilities.
* BrokenBase: On many, many ''many'' things. Pets, 16-bit sprites, using Reddit as a primary communication platform... the list goes on.
** Possibly the biggest one is dragging and leeching. A common tactic for poorly-equipped or low-level players when entering a dungeon is to sit in the entrance to the dungeon and wait for the better player to reach the boss room, where they teleport to the boss to try and get some of the loot. In response, some players will collect a large group of enemies and kite them on top of the leeching player, often in far too large groups for the leeching player to deal with. Whether either of these attitudes are justified is a common hot point among fans, so bring it up at your own risk.
* ComplacentGamingSyndrome: Every single top pet will have Heal and Magic Heal as their first two abilities, and most of the time Electric as a third. The former two are absolutely indispensable to improve survivability, and at high levels heal enormous chunks of health and magic every second or so. Electric is used for crowd control, and to escape high-speed chasing enemies better.
* DudeWheresMyReward: The limited Belladonna's Garden has a rather difficult boss and infamous insta-kill flowers that are hard to spot...but the rewards are only T9 weapon reskins, with a minuscule chance of getting a skin.
** The Woodland Labyrinth is infamous for invoking this. You must go through a BrutalBonusLevel with a confusing, maze-like layout, fight through hordes of extremely deadly enemies, avoid numerous invincible turrets, and defeat a 3-stage SequentialBoss with brutally powerful attacks and a tendency to stack shots. And the reward for all this...is a single Vitality Potion, with a minuscule chance of getting a top-tier weapon that could be gotten from an easier dungeon like the other Epic Dungeons, and an even smaller chance to get the Leaf Bow, which for all its purposes is an AwesomeButImpractical weapon most of the time.
*** Averted with a recent update that nerfed the turrets, massively boosted its loot table and chances, as well as buffed the Leaf Bow by an insane margin. While it may not be the most worthwhile dungeon, it is now at least worth going into.
** The Jade and Garnet Statues, and by extension the Mountain Temple. The Statues are an extremely deadly (even for Event Boss standards) DualBoss with a number of hard-hitting attacks and a blazingly-fast, OneHitKill charge attack. And if you kill them, the best loot you can get is a single Stat Potion, and that's only if you're lucky. The Mountain Temple they drop is even worse, hosting rather deadly enemies (read: Corrupted Casters) and a brutal MarathonBoss that embodies BulletHell with a passion. And the only thing said boss can drop is a single Defense Potion and one other random potion, with a small chance of a mid-high tier weapon and a minuscule chance at 2 questionably-useful UT items (although the Wand of the Fallen is widely considered to be extremely powerful).
* {{Fanon}}: Pretty much all of the game's lore is this.
* GameBreaker: The Spider Den dungeon formerly made it too easy to level up, allowing a player to increase from level 1 to level 10.
** The best healing spell also used to fully heal ''everyone on the entire map''. One priest could cast it two or three consecutive times without mana potions.
** Pets, or at least high-level Heal/Magic Heal pets. Levelling the Heal ability to level 100 (The highest possible) results in the pet healing you for 90 HP... every ''second''. This means that many situations that would previously have been lethal are now cakewalks due to enemies simply being unable to kill you faster than your pets can heal them. Magic Heal is similar, if slightly less effective, healing you for only 45 MP per second, but this is still enough to let every single character spam their ability to no end.
*** As a direct result of pets, sword classes (Particularly the Warrior and Knight) have become this. Their dangerously low range in exchange for incredible offensive ability previously made them a high-risk high-reward class, with their high defense only allowing them to spend a short time within effective sword range. With pets healing them and refilling their magic, this changed; Knights can now permanantly lock enemies in the Stunned status rendering them unable to fight back the second they close to melee range, made easier by the constant healing, and Warriors can permanantly buff themselves with the Armoured status by using the untiered Helm of the Juggernaut, skyrocketing their Defense to levels that, augmented by the high Heal power of pets, they can simply ignore every single shot that comes their way, even the 200+ damage ones.
* GameplayDerailment: In two kinds.
** The first is the derailment caused by pets- a fully maxed Knight or Warrior can basically ignore anything shot at them until they reach sword engagement range, and then sit there until their target is dead, being healed for any damage they take by something healing more than a Priest could.
** The other is just a simple evolution of the game's playerbase. When the game was in its golden age, the devs were balancing content around the expectations of there only being 4-6 maxed players in a realm at one time, the majority of the players spending time in midlands or highlands levelling up.[[note]]This is, among other reasons, why the Godlands are so small compared to the rest of the realm[[/note]] Now, realms in popular servers are unlikely to dip below a population of 60-70, the majority of which will have at least one stat maxed. This sheer imbalance leads to any boss or event that doesn't have HP Scaling or frequent invuln times being steamrolled in a [[CurbStompBattle matter of seconds]]- about the only things that you can reliably expect to live longer than half a second are the aformentioned [[LevelScaling HP Scaling Bosses]], [[MarathonBoss Avatar of the Forgotten King]], [[BrutalBonusLevel the bosses from any endgame dungeons like The Shatters, The Nest or Lost Halls,]] or bosses that go invulnerable constantly. And even ''[[UpToEleven then]]'' in a full realm you likely won't see them live longer than a minute or two, most of which will be their invincibility phases.
* GoddamnBats: The bats in the Manor of the Immortals; they inflict the incredibly annoying [[StandardStatusEffects Confused]] status, making it highly likely you'll stumble right into [[OurVampiresAreDifferent Nosferatu]].
* HeroicLineage: A couple of achievements imply that every new character is the child of the former character, or at least otherwise related, and thus that 'Fame' is the leveragable prestige of the family name.
** SingleLineOfDescent: If you go with the interpretation that each character is the child of the previous.
* IneffectualLoner: Fresh 20s in the Godlands, depending on gear.
* IdiotProgramming: The client-side of the game is programmed in ''{{UsefulNotes/AdobeFlash}}'', making it par for the course. However, there are a number of issues that arise due to the nature of the game (Realm originated as a 1-month contest entry) that have at best been glossed over, the main one being the complete lack of database integrity or client-side security; this is why hackers and dupers are so prevelant in a game with a team dedicated to banning them.
* JunkRare: Some intentionally useless UT items, such as the ones from the Battle of the Nexus. No actual use, but look pretty cool.
** Similarly, some tiered reskin items such as the Belladonna's Garden reskins or the Haloween reskins. No difference from regular tiered weapons save what they look like. {{Averted}} by the Winter reskins, due to dropping continuously for over a year.
* MemeticMutation: Just about everything related to the MookMaker-[[UpToEleven spawning]] MookMaker [[OddJobGods CUBE GOD]].
** Free itens pls. [[note]] The stereotypical begging of a player who can't actually play the game and is likely to just get themselves killed with the items by running [[LeeroyJenkins headfirst into danger.]] If you use these words seriously, expect a lot of mocking from other players.[[/note]]
** Lel xD. [[note]]The fanmade CatchPhrase of the Knight, due to the community deeming him such a low-risk high-reward class that all Knight players are now labelled as immature numbskulls. Made popular by [[https://www.youtube.com/watch?v=OH8ewmEsjs4 this video]][[/note]]
** RING OF DECADES NOW IN STOCK [[note]]The Wizard is the starting class in the game. Since most Real-World Trading sites (like those who used the original quote above) don't bother to actually play the game, 99% of all spambots are Wizards. This phrase has now extended to referring to the Wizard Class in general. Once again, made popular by [[https://www.youtube.com/watch?v=ROUDJ1RTePo this video]][[/note]]
** Buff Hydra. [[note]]The T13 Hydra Skin Armor is supposed to be the highest tier leather armor, but is outclassed in nearly every way by most of the other UT armors like Coral Silk or Spectral Cloth. This has left fans begging for a buff for a while now, in often hilarious ways.[[/note]]
*** Now an AscendedMeme, as for April Fools DECA buffed the Hydra Skin Armor temporarily. [[note]]By "buff", we mean they gave it a +1 MP bonus...[[/note]]
*** Has since moved on to the Dirk of Cronus (Cdirk). Any underpowered item in general is subjected to this meme relentlessly.
** [[DemonicSpiders Ice Adepts]] and [[OneHitKill Ice Spheres]] in general.
** Calling the Spectral Sentry in the Lost Halls "Spooky Boi", which has been ascended in may ways by the devs. Like the above, he's also become notorious for being [[ImplacableMan literally unstoppable and delivering instant-death attacks.]]
** The drop rate of some of the [[RareRandomDrop White Bags]] is so notoriously low (particularly the Wand of the Bulwark and the Shatters/Event Whites) that it's often poked fun at on the subreddit, such as people saying Bulwarks are an extinct species.
--> '''{{YinYarnsBarn}} (in Why the Warrior is Stupid):''' "I'm not even going to talk about the [[RareRandomDrop Helm Of The Juggernaut]]. Why should I? The helmet only drops if the temperature outside is exactly 67 degrees Fahrenheit and the stars are all aligned in the precise order they need to be."
* MoneyDearBoy: Kabam! is frequently accused of this.
* MostWonderfulSound: [[http://www.realmofthemadgod.com/sfx/loot_appears.mp3 The sound of a bag dropping.]] Especially when said bag is a White one.
** [[http://www.realmofthemadgod.com/sfx/enter_realm.mp3 The sound that plays]] when the [[DamageSpongeBoss Void]] [[TrueFinalBoss Entity]] ''finally'' dies.
* ScrappyMechanic:
** The majority of InterfaceScrew debuffs. The most hated one is probably Confusion (rotates your controls 90 degrees), due to its ability to almost instantly screw you over in any fight and the fact that getting around it specifically needs you to memorize the confuse controls.
** Played With when concerning the exploding barrels in the Parasite Chambers. Most think that it's a unique and interesting mechanic that makes the dungeon (especially the boss) much more fun. However, it's almost unanimously agreed that the barrels are immensely annoying in the hands of trolls or clueless players. The former because they will abuse the barrels to Armor-Break[[note]]Reduce their DEF to 0 for a few seconds[[/note]] their allies to get them killed, the latter because mishandling the barrels will extend the boss fight by an unnecessarily long time.
* ThatOneBoss:
** Event Bosses
*** The Avatar of the Forgotten King. It has extremely dangerous attacks, several phases, and lethal minions, which is standard for an event boss. However, the thing has 450,000 HP. It also has 90 base DEF, and has the Armored effect on at almost all times, resulting in 180 DEF, which in turn heavily reduces the damage you can do. Combine the two and you have a solid reason to why this is the game's resident MarathonBoss. Unless someone has the Shield of Ogmur, expect to take a lot of time trying to kill it.
*** The Jade and Garnet Statues. They aren't too bad, having similar stats to most event bosses, but they possess an OneHitKill dash attack that can easily catch players off guard. The only warning is the Statue using it flashing red, and the dash can run over people that are almost off the screen. While the warning is fairly easy to see, the risk of teleporting to them and getting instantly butchered is high and has caused players to take safety measures. Needless to say, the dash alone has earned these bosses a special place in Oryx's arsenal of Event Bosses.
*** The Killer Bee Nest. Until a recent update that nerfed the HP of its minion colonies, it was easily the most annoying Event Boss in the game. To start off, it is in an arena filled with Killer Honey (imagine Magma + Quicksand) and has a number of extremely durable Nest Colonies to fire at you and heal the boss for faster than you can damage it. The Nest Colonies also make Nest Colony Guardians, who will gleefully gang up on anybody that approaches them while ''healing the Nest Colonies''. To make matters worse, the Nest Colonies can respawn the Guardians at half HP, almost always healing them back up to full health. While the boss isn't too hard, once it takes enough damage it will delegate the fight to the Red/Yellow/Blue Beehemoths; massive bees that embody the unholy combo of WolfpackBoss and LightningBruiser with a passion. Each Beehemoth is incredibly powerful, very fast, and when you kill one, [[KillOneOthersGetStronger the others will just get madder and larger.]] The icing on the cake is that while they can drop some fairly good loot, the dungeon they drop (The Nest) is ridiculously difficult and nigh-impossible to beat with a small group.
*** The Lost Sentry. He has a towering 800,000 HP and throws out more projectile spam than any other Event Boss in the game. To make matters worse, each bullet does ludicrous damage, meaning a stream of them will swiftly kill anyone. To make matters worse, there's an invincible enemy called the Spectral Sentry which orbits him while firing lethal shotguns that shred through armor. The Spectral Sentry can also sometimes charge through the middle of the arena to surprise unwary players. While his drops are rather good (able to drop up to 3-4 Stat Pots and a rare chance at a powerful UT Cloak), the final insult is that the dungeon he drops (the Lost Halls) is nearly impossible to complete with the amount of people that are in the Realm, making most players simply ignore him (since he's an optional boss).
** Dungeon Bosses
*** Bes, Nut, and Geb in the Tomb of the Ancients. Each of them brings something different to the table, Bes being the MightyGlacier with high HP/DEF and attacks that can stun and break armor, Nut being the SupportPartyMember who can heal the others and fire countless status-inflicting shots, and Geb being the LongRangeFighter with rapid, wide-area barrages of extremely dangerous shots and bombs designed to shred players instantly. They each provide a unique role in the battle and strategy is key to defeating them. Unfortunately, in a "public" tomb, coordination is almost nonexistent and 99 times out of 100, the plan for killing them goes out the window and turns into "shoot anything that moves". Which ends up leading to a boss battle a lot harder than it should be, which is especially alarming considering each of the bosses were already extremely hard to begin with.
*** The Killer Bee Queen. She packs 300000 HP, 55 DEF, and a brutal, [[MarathonBoss seven-phase-long]], BulletHell laced fight that's a solid contender for hardest fight in the entire game. She takes a while to whittle down, possesses incredibly dense and dangerous shot patterns that deal huge damage (often bypassing your armor as well), and can hammer you with ''nearly every status effect in the entire game.'' To make matters worse, the arena is very small and filled with Killer Honey to greatly limit your space, in a fight where mobility is possibly your best hope of survival.
*** While the Nightmare Colony is generally considered to be a contender for one of the most well-designed bosses in the game, entering the dungeon with an overly large group turns the fight into a complete [[JustForPun nightmare]]. Not only will HP scaling pump its health through the roof, but its normally-dodgeable shot patterns become nigh-impossible to ''see'' in the cluster of people, much less avoid. Because everything is so cluttered, it's hard to notice when enemies plow into your flank and start wreaking havoc until your health bar has been deleted. Most of all, too many people will inevitably make it nearly impossible to properly aim the explosive barrels at the boss, in a fight where using the barrels right is literally the only way to kill the boss.
*** Daichi the Fallen. 250000 HP and 65 DEF is nothing to sneeze at, and he pumps out so much BulletHell that competes with even the likes of Oryx and the Killer Bee Queen. His attacks come out very fast, flood the screen and deal enough damage to easily shave off huge chunks of your health bar. And the worst part about Daichi is his loot: now that Murderous Megamoth got a loot table buff, his fight is arguably the worst risk-vs-reward ratio of anything in the game, guaranteeing '''1 measly stat pot to only 2 people''', a low chance to get mid-high tier gear that could be received from far easier bosses, and giving an extremely low chance to drop 2 UT items, one of which is questionably useful.
*** After getting HP Scaling, [[FinalBoss Oryx the Mad God]] became an absolute monster. His new HP is nothing to sneeze at (60000 plus 12000 per player in the chamber) and he has a high DEF score of 60. Now that he lives long enough to use them, he will not hesitate to sic his innumerable attack patterns on players, all of which are extremely tricky to dodge and deal ludicrous amounts of damage. The fight is even worse if you were used to him being killed in less than ten seconds and are unfamiliar with his attack patterns.
*** Marble Colossus and Void Entity from the Lost Halls. The former is a massive tank of a boss that soaks up and deals immense amounts of damage, fills the screen with enough bullets to put Daichi to shame, and boasts several survival phases that force dodging instead of killing the boss as fast as possible. The latter is a [[DamageSpongeBoss 1 million HP]] TimeLimitBoss that spams all manner of instakill attacks, floods the screen with deadly minions, can ''divide the arena'', and flies around the stage at ridiculous speeds.
*** And of course, the game's resident TrueFinalBoss: Oryx the Mad God 2. Packing a minimum of 65000 HP, HP scaling, and 60 DEF, he is equipped with a brutal long-ranged shotgun of multicolored stars that deals enough damage to instantly shred any class in the game and also inflicts [[StandardStatusEffects Confused, Slowed, Blind and Quiet.]] Since he spams this shotgun constantly, it is almost impossible to get close to him, and is made even harder by the fact that he constantly spawns [[DemonicSpiders Henchmen of Oryx]] that can confuse you into his shots, while also spawning their own minions and generally getting in the way. Oh, and he also employs omnidirectional, rather hard-hitting attacks and can spawn Monstrosity Scarabs to bomb you. It somehow gets even worse when he TurnsRed and begins to chase players while utilising nigh-unavoidable attacks that severely cripple attacks and abilities (they Quiet for 20s and Weaken for a whole minute). He has earned a nasty reputation for murdering countless 8/8 players and is well deserving of his title as FinalBoss.
* TookALevelInBadass: The introduction of HP Scaling in a recent update (starting with the Parasite Chambers and Stone Guardians) turned the majority of the weaker bosses into absolute monsters due to being personally insured against steamroll power, as they would gain more HP depending on how many players were in the battle.
* TheScrappy: Kabam!. They weren't too badly disliked after first acquiring the game from Wildshadow Studios, mostly because the game would likely have been shut down without that. Since then, aside from a few good moves such as the Haunted Cemetary and Davy Jones's Locker they have done very little to actually support the game; the Epic Dungeons are simply much harder versions of the three easiest dungeons in the game, The Shatters was [[OfficialFanSubmittedContent designed by one of the forum-goers]], the Lair of Draconis and the Ice Cave both took [[ScheduleSlip forever to]] [[DevelopmentHell come out]], they frequently break promises made to the playerbase, do very little to fix glitches or shut down hacking, have very poor support (often not even reading the tickets they get sent), and made a number of [[BribingYourWayToVictory Pay-to-Win]] measures.
** Most recently, they left the game completely untouched for six months. An MMO with no updates, little word from the devs, rife with hacking and cheating, a seasonal-themed Nexus that rapidly became outdated, and no word on if the game would continue to be worked on. Eventually, one of the GMs announced that the ''entire'' dev team had been pulled away from the very active MMO to work on mobile games and "would be working on the game in the future." Two months after that and the only activity is from that same GM, who is using recycled events to attempt to breathe some life into the rapidly-ailing game. Needless to say, [[CaptainObvious this has not endeared Kabam! to the game's fans.]]
* WinTheCrowd: DECA Games won the crowd ''just by buying the game'' from Kabam!. They then followed up with a month-long celebration, just to rub it in.