ModsHappy Room
Happy Room mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
514 mods, most downloaded first · newest update 26 Feb 2026
- Guillotinalityby Boot_boiGives you Guillotinality, might take you a few tries;)372 downloadsupdated 8 y ago
- 80500 damage in sandboxby JokeRThis room doing nearly 60k damage actively and then pushing to 80k as saws goes by360 downloadsupdated 10 y ago
- Dungeon Wallalityby hinataStart→Speed ×2→waiting Use Weapon&Need Upgrades Weapon amount Bomb 56 Saw 18 Magic Wand 4 Ice Dragon 1 Fire Doragon 1 Teleport 1358 downloadsupdated 8 y ago
- ready deathby Squibbvyyou can add wepons to it and it will kill the dummy most of the times !ps! you will mostly get saw, disco and frozenality348 downloadsupdated 9 y ago
- This Will Get You To 8k Damageby 76561199096874373Not A Lie. You Have All Rights To Copy This Strategy348 downloadsupdated 6 y ago
- Coldweaponalityby steell1ne330 downloadsupdated 8 y ago
- Dungeon - Macealityby ThoschoDungeon - Maceality329 downloadsupdated 8 y ago
- Fatalityby _{ILO}_ Luig1Its map contain 1 ou more fatalitys319 downloadsupdated 9 y ago
- Dungeon convayer beltby imacatuseeA convayer belt made of saws that in my 30 minutes of testing last about 6000 DMG and around 3 minutes or so. So enjoy and add to your Slaughters contentment. happily ever after from Lightn3ngCat on YouTube.317 downloadsupdated 8 y ago
- Achievement 51by KernAchievement 51; Fly around a block with mini-lasers clockwise 3 times Simply press start and the achievement will be yours!316 downloadsupdated 10 y ago
- Dungeon - Pitchforkalityby ThoschoDungeon - Pitchforkality309 downloadsupdated 8 y ago
- Shotgun room dead with Shotgunby Slarius1this is for shotgun kill achivment307 downloadsupdated 10 y ago
- portalityby MatiXPalality by matonim301 downloadsupdated 9 y ago
- Flight is Normalby trulyunknowableThis is a setup on which you can get the achievement "Flight is Normal"301 downloadsupdated 10 y ago
- Dungeon - Guillotinalityby ThoschoDungeon - Guillotinality298 downloadsupdated 8 y ago
- 14693Dmg Farmby Devin ChadJet another Dmg Farm its going to the Blackhole and with my other Farms you can get enough dmg to load this lvl.If you got any LvL I could build write it as coment.291 downloadsupdated 10 y ago
- Dungeon - Crossbowalityby ThoschoDungeon - Crossbowality287 downloadsupdated 8 y ago
- Infinite money sawsby 76561198327173248do this for literally infinite money285 downloadsupdated 8 y ago
- Spikealityby One Armed LarryThis setup may take a couple tries to work and you may get frozenality. Spiekality was my last death for my dummy279 downloadsupdated 9 y ago
- Happy Space Program 2by Fre2XnMy Record 441,5M :) Inspirated By Happy Room Space Program274 downloadsupdated 9 y ago
- Monsters in zero gravity roomby DeBucesta30 seconds of 10 Monsters in zero gravity i have tested it 20 times, and only 2 times it didnt work, so, yeah, if you can complete the challenge of monsters in zero gravity, download this map272 downloadsupdated 8 y ago
- MINEALITY!!!(remake)by 76561198341340172MINEALITY!!! ------------------------------------------------------------------------------------------------------------------------------ -use in normal -For ALL UPGRADE(most) -sometime it isn"t work plz try again ---------------------------------------------------------------------------------...271 downloadsupdated 9 y ago
- almost all fatalitiesby AntanasPut the trap at the end. Поставьте ловушку в конце.270 downloadsupdated 8 y ago
- Finish Happy Roomby 76561198392476262269 downloadsupdated 9 y ago
- Dungeon - Magicalityby ThoschoDungeon - Magicality265 downloadsupdated 8 y ago
- All the Fatalitysby 76561198347370369If you want all fatalitys (sometimes same)261 downloadsupdated 10 y ago
- Dungeon - Spideralityby ThoschoDungeon - Spideraltiy260 downloadsupdated 8 y ago
- REALITYby Enderthunder...is it a lie? Sandbox Mode achievement.259 downloadsupdated 8 y ago
- Easy Fatalityby 76561198820346602This room will get you an Easy Fatality258 downloadsupdated 9 y ago
- Acupuncture Doneby LiandarinThis room works extremely well for the challenge "acupuncture, yes please". the idea is to push the dummy against the ceiling and floor with the gravity guns while it's shot horizontally by the death ray255 downloadsupdated 8 y ago
- bombby 76561198885022459a lot of bombs252 downloadsupdated 8 y ago
- Portalityby JaxpinkmanKill dummy with a cube!!! This achievement is very difficult to get!!! I spent hours designing this room,which could kill dummy with a cube,lightningf,fire,ice,mine,and wall...so you need to be extremely patient and try many times if you wanna kill dummy with a cube248 downloadsupdated 9 y ago
- 11 Spikes in 1 secondby Fre2Xn245 downloadsupdated 9 y ago
- Dungeon - Fishalityby ThoschoDungeon - Fishality236 downloadsupdated 8 y ago
- THE INSANT KILLLLby CrazyMan 2.0its so brutal it lages lolololol234 downloadsupdated 8 y ago
- Dungeon - Minigunalityby ThoschoDungeon - Minigunality232 downloadsupdated 8 y ago
- Dungeon Fatalsby xsEgoAfter got a wheel ride a subject should left 450-0 hp. Use right side to add yours lethal method. Tried to make it cheaper for most hard achievements.231 downloadsupdated 8 y ago
- Elementalityby PhilGamerElementality easy231 downloadsupdated 7 y ago
- Cupcakelityby Terror Da Scar229 downloadsupdated 8 y ago
- Jump Masterby Toble_MinerThis room will gain you the "Jump Master" achievement. Dummy might get stuck though, just retry if it happens.228 downloadsupdated 8 y ago
- the Dummy killer 2by Muffinsthis is the Dummy killer 2 with mor ice it will KILL the Dummy and you will win the GAME225 downloadsupdated 8 y ago
- Funalityby PhilGamerFunality (need some luck)219 downloadsupdated 7 y ago
- MINEALITYby 76561198381278675doese about 60k damadge and costs 55.95k219 downloadsupdated 9 y ago
- Axalityby 76561198324231713Doesnt work 100% of the time, but works a lot of the time215 downloadsupdated 8 y ago
- TO MOONby Na' Vi DRAZZERKE214 downloadsupdated 8 y ago
- Infiniteby Rocky213 downloadsupdated 9 y ago
- 8 Upside Down Goblinsby SoulRipper19908 Goblins upside Down. Need some trys because it depends on RNG. But i tested it and it worked212 downloadsupdated 8 y ago
- Explosionalityby EnderthunderWill hopefully give you Explosionality for Sandbox Mode.212 downloadsupdated 8 y ago
514 mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.