They Are Billions
They Are Billions 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.
4,524 mods, most downloaded first · newest update 28 Oct 2026
- 峡谷51 downloadsupdated 7 y ago
- Slow BurnThe Time Killer.51 downloadsupdated 19 mo ago
- isolationbeat the doomed town, then he swarm. a gaint is protecting something gaint51 downloadsupdated 5 y ago
- The Island51 downloadsupdated 6 y ago
- NEW ONE TRY IT! [FIXED]Good luck! NOW FIXED! NO LAG!51 downloadsupdated 8 y ago
- Nice Housing AreaMy first map, 80 days, best local contruction51 downloadsupdated 3 y ago
- Caustic PocketPerfect "natty" pocket51 downloadsupdated 2 y ago
- Endless Wave51 downloadsupdated 7 y ago
- New Level51 downloadsupdated 5 y ago
- Hope it's difficult enough for ya Si.I hate melon soo fucking much51 downloadsupdated 8 y ago
- Hardest map ever v1.2Every 2 days new horde will be spawned at random location. Last day is day 80. Good luck and have fun. -Kobas-50 downloadsupdated 4 y ago
- The highlander on steroidsYour spy's have noticed a huge wave coming from the east and made a trench around the base entering at the north west. High mountains will prevent zombies coming around from the north. You must build your colonies in 30 days before a huge wave will arrive.50 downloadsupdated 7 y ago
- Imkibiz NightmareAs the great GrayStillPlays once sais " I feel like there's a certain lack of fairness in this board."50 downloadsupdated 4 y ago
- Birbouryou've been send on a mission to rebuild the former city of Birbour, your goal is to reach 2000 citizens. But be carefull, the infected will react to the growing number of people.good luck. (feel free to take your time, there's no time limit) at 2000 citizens all infected will form a horde, and y...50 downloadsupdated 7 y ago
- Seeds of DoomEradicate the vermin from your lands and secure them from the oncoming hordes of filth heading your way. Survive 95 days to win the respect of our esteemed Emperor Quintus Crane. First wave Day 20 continuing after that at decreasing intervals.50 downloadsupdated 7 y ago
- New LevelPa' Carlos <350 downloadsupdated 7 y ago
- South_InvasionTry Survival the 23 waves. The final wave have 3405 ZOMBIES. All come from the South.50 downloadsupdated 6 mo ago
- The First MapThis is my first map.This map has a lot of zombies,so you need a good cpu.You don't have to worry about growth.Sufficient resources50 downloadsupdated 8 y ago
- were it all started part 250 downloadsupdated 8 y ago
- they are everywhere 2You are the last survivor try to live49 downloadsupdated 4 y ago
- Victory road(area 2)Go for your victory and destroy the infected! !WARNING:hard! DROUGHT.49 downloadsupdated 4 y ago
- Pleb City IISurrounded and pounded Increasingly rapid waves of varing sizes. Tests your ability to balance colony advancement and defence.49 downloadsupdated 7 y ago
- ICE重新优化!绝对超级无聊输出休闲挂机图, 没有喷毒怪和大胖子!尸潮方向随机,最多4个方向,最少2个方向!次数共计150波,首次第20天,其后5天一波!49 downloadsupdated 8 y ago
- Prepare yourselfAll may seem ok in the beggining, but do not be fooled by my kindness.49 downloadsupdated 8 y ago
- 绕高达49 downloadsupdated 18 mo ago
- New Level49 downloadsupdated 4 y ago
- Hard Waves by REDRUM49 downloadsupdated 3 y ago
- Its my life49 downloadsupdated 5 y ago
- a friend in need (I got Bored.)( I got bored.)You,(lucifer) was holding an outpost with your sqaud, all the sudden, many many vemons (Spitty boiz!) rushed out of nowhere and your crew was forced to scatter, you (being a lucifer) could handle the venoms (as you should), but now you must find your friends, carefull, they might n...49 downloadsupdated 8 y ago
- The only way outVersion 1.0 - 100 Day´s . 2 City´s . 7 Gigant´s and only One way out ;-)49 downloadsupdated 7 y ago
- Hide or Fight?In the Dutch Lowlands, you have found a place hidden between rivers and the sea to your north! Could this be, where you rekindle civilisation after the Horde wiped the Capitol?49 downloadsupdated 4 mo ago
- HardcoreHordesTo będzie ekstremalne oblężenie zombie! Postaw jak najszybciej potężną fortecę i wybroń ogromne hordy zombie! Na przygotowanie solidnej obrony masz 18 dni - wtedy to napada pierwsza horda. Najpotężniejsza horda będzie w 100 dniu gry. Jeśli przetrwasz ostatnie oblężenie to zwyciężasz! ------------...49 downloadsupdated 8 y ago
- Gold Site RecoveryMy first level! This land is a blessing, filled with rich materials mankind once used to extract. However, the dangerous swarms have infected the pervious colonies that came to collect these resources. You will need to destroy these cities to acces the rich gold mines. The past colonies have used...49 downloadsupdated 3 y ago
- The ArenaGameplay: The Arena is a multistage map that tests your effiicientcy with the units in They Are Billions. Your primary goal is to follow the pre-defined path until you reach the end. You will have to use kiting and direct engagement to win. Will you survive? Note: If you find any bugs, glitches,...48 downloadsupdated 8 y ago
- The Funnel InsaneFunnel Billions48 downloadsupdated 5 y ago
- Le CHOKEAnother one of those types of maps48 downloadsupdated 7 y ago
- AprendizÉ muita porrada. Ataque final: Dia 35. Meu primeiro mapa. Muito fácil.48 downloadsupdated 7 y ago
- epicsauce levelepic lvl i made! (: this lvl is really easy, and its my first lvl i made. so pls dont roast it.48 downloadsupdated 19 mo ago
- Hold out the cold48 downloadsupdated 7 y ago
- POOO48 downloadsupdated 16 mo ago
- Survive the Icy NightmareA Nightmaresh Horde is on there way and you gotta bunker down in the Icy Mountians.48 downloadsupdated 7 y ago
- Delta BaseKill the four Gaints and you may live to see the princess48 downloadsupdated 8 y ago
- Plague PlanetA vile corruption has infected the land. Your colony is unlikely to survive more than a few months on this sickened world, but orders are to hold as long as possible. Reinforcement drop in 90 days.48 downloadsupdated 8 y ago
- The Downward Spiral48 downloadsupdated 8 y ago
- The Forever WarWe are the last bastion of humanity, if we fall, we are no more...48 downloadsupdated 4 mo ago
- SpiralHow far out can you make it before the final wave?... No warnings...48 downloadsupdated 8 y ago
- SnakeOnly one way to your settlement, but also one way out. Carve your way to growth and victory47 downloadsupdated 5 y ago
- Enjoy Game!47 downloadsupdated 8 y ago
4.5k 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.

