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
- Wrath of God Seventh Wonder Demonstrationby 76561198346010785A demonstration of the "Wrath of God" Seventh Wonder, about 50 Executors overlayed on top of each other.195 downloadsupdated 8 y ago
- 开你的饭正在路上by 龙飞腾达25天来第一波尸潮,南北方在路口不远处都有一个大老王,层数我就不说了.72天最后一波194 downloadsupdated 7 y ago
- 关于错误打开游戏的那点事儿by 76561198323260585啊,图画的有点普通,请不要嫌弃,因为你在玩了之后可能会更嫌弃 作者:兰姆达QAQ194 downloadsupdated 5 y ago
- Masta TDby damastaAnother TD, be prepare, still in work, please comment to help for balance194 downloadsupdated 6 y ago
- Sleepy Hollowby arbuzikiThis is quite a hard level during which you will have to withstand formidable forces of enemies coming from the North. Insignificant but constant attacks from other directions will bother and distract you over the course of the game. Take over the command of Sleepy Hollow and save lives of innoce...194 downloadsupdated 8 y ago
- Want to play a Game? Endless Fieldsby Static.o2Endless survival map. You will die here. Its just a matter of how in the end... Are you ready to play? . They start Comming in on day 20. The walls are much Stronger, and the only thing between you and ruin. After day 50 the infected begin to grow stronger. And harpys will bomb the party any chan...194 downloadsupdated 3 y ago
- Os quatro demôniosby helisobralDemônio 1: Strong Demônio 2: Harpy Demônio 3: Giant Demônio 4: Venon Demônios começam a atacar aos 15 dias.194 downloadsupdated 7 y ago
- Death Marchby Static.o2The Curator has stoped writing for Good. And now only writes for Evil... Beat the gauntlet if you can. And join my legions of mayhem. Waves, Triggers, and hard starter. Careful, watch your step.194 downloadsupdated 22 mo ago
- 地狱模式第一张by 76561198373981047194 downloadsupdated 6 y ago
- 大胖子的战争4by 龙飞腾达The local map shows the corpse tide, the last wave in 80 days.193 downloadsupdated 7 y ago
- 50日之后by 年轻时候玩家们有没有想过有一波尸潮全图僵尸都来了但却不是最后一波,守过了还能继续发展呢?如果想过就来试试这张随机图吧!50前有奖励可以选择,50天后尸潮时间51,57,63,69,74.43天将是一波极大的考验,但之后怎么快速恢复和发展也是一个挑战!193 downloadsupdated 8 y ago
- Fornalhaby helisobralComeço fácil, mas progressivamente dificultando. Enxame final muito brabo. início ; 30d Duração: 80d193 downloadsupdated 8 y ago
- The Venice Jobby 4Venice has fallen, the infected have taken over. Head north and annihilate the nest of infected. 2022 Update All waves have been tweaked for a better experience. Sweat Version193 downloadsupdated 4 y ago
- One way in! [My first map]by 76561198808746821You have resources and the zombies are only allowed in by one way, Defend it as much as you can. If it's too easy tell me I will fix this in a better version. Thanks for your support193 downloadsupdated 8 y ago
- Random Sniper Bonusby ehicks05overview: I wanted to make the 80 day + max population experience reliably winnable and almost kind of relaxing for mid-level players. Without being auto-win. For me 300% difficulty is like 50-60% win rate. I would say this mod can be more winnable than that once you've figured out the early game...193 downloadsupdated 8 mo ago
- 应该很轻松2by 76561198983191741双口爽图,相比较于1,增加了触发,进入草地线直接开打。81天总攻,96天强制胜利。192 downloadsupdated 6 y ago
- TwistedTowersby Static.o253 Day Challenge! Tower Defense literally, No time to build a town! But it could help. YetAnother Mile stone to a Grander Plan... Good Luck! Ver. 5.7192 downloadsupdated 3 y ago
- Corridors of Doomby Darth PedroA maze to explore. Hint: "Turn right when you go out the door"191 downloadsupdated 5 y ago
- 万万没想到系列之一by 76561198914654153感谢啦啦大神,龙飞腾达大神的指点迷津 万万你也没想到,这里有触发 难度1000 适合各段位玩家来爽191 downloadsupdated 7 y ago
- A Giant Mazeby KhronossA land with a powerful North and South armies with single point entries. Are you ready to crush the undead in 100 days?191 downloadsupdated 8 y ago
- Prison Campby Static.o2Upgrades, Resource Upgrades, Altered enemies. The Harpy's. Waves start day 25, and repeat every 5 days. Map Ends day 79191 downloadsupdated 12 mo ago
- One way 15,000 giants 单向15,000个巨人by Purple Spongebob15,000 giants coming in 80 days (much harder!!) ( 80天之内15,000个巨人( ( 要难得多!)190 downloadsupdated 6 y ago
- 117by 76561198454150871190 downloadsupdated 8 y ago
- Siege of the Dark Kingby WalichrageIt has been discovered that the zombies are controlled by a powerful being called the dark king. Slaying the beast will neutralize all zombies connected to it. Go to the heart of darkness and defeat the dark king. Features: - custom tech tree - face the dark king and his guard (win condition) - k...190 downloadsupdated 6 y ago
- 猎魔战记by 76561198911236895这次就不给说明了,细细体会190 downloadsupdated 8 y ago
- EasyMapby 76561198808123634190 downloadsupdated 5 y ago
- The Oni Demonby sedgeDo you have what it takes to cleanse the Demon? Endless waves from everywhere, the first one starts on day 5 from the North, the rest is up to you to find out... hehe189 downloadsupdated 6 y ago
- Ranger Revenge v2by Ranger GuardianThe world collapses under the zombie apocalypse... Kaizen found a new Oasis in the desert without infected. He ordered to ship various goods to the place and built a new home. Kaizens Reich was crowned. As the colony grew bigger, the noise and lights in the night invited some guests from far away...189 downloadsupdated 8 y ago
- the mega cityby 76561198968852759hard level tip dont expand fast189 downloadsupdated 3 y ago
- Show Me Zombie!by bumbacladA roguelike experience that bends the rules of the They Are Billions universe to their breaking point with over thirty different upgrades to your units and towers. Play as a contestant in a game show and overcome the rules to be victorious.189 downloadsupdated 6 y ago
- Beware of the Northby 76561198803029414400k plus infected. North is tower defence like with winding paths. North begins to attack in small waves day 1. The 1st real wave is day 15 also from North. Every 7 days later the North gets more intense. Other waves start day 30 from the East and come every 10 days til day 80 then more frequent...189 downloadsupdated 7 y ago
- Regain greatnessby IDKWGOFirst of all you and your soldiers must find command center. After that try to expand as far as you can. Waves every 6 days after 15 day.188 downloadsupdated 8 y ago
- Retaking of Concordiaby SuperHogRetake Concordia and its production areas, beware the return of the Demons that decimated it. This is an average 60 Day game. However the final wave is not so average. Any Input would be greatly appreciated.188 downloadsupdated 8 y ago
- 300 - The Hot Gatesby 765611988149782001,000s of Infected, 50 Days, 5 Waves, 1 Entrance, No Escape. You're outnumbered, but we stacked the deck a bit in your favor and you'll use the envirnmoent to level the field. Good luck! "We will funnel them into the mountain pass we call the Hot Gates. Now, in that narrow corridor,their numbers...188 downloadsupdated 8 y ago
- 100天之懵新用生存图by 76561198980194248新手第一个地图,资源多多,僵尸多多..188 downloadsupdated 2 y ago
- Polar Expedition, MIssion 2: Project Sourceby EXTRA THICCAfter surviving the first few months alone, we finally made contact with the HQ. Only 3 expedition bases were in contact, HQ, base 027 and 3 more, that remain alone in the North.All personel from base 027 is currently resting in the Expedition HQ and awaiting further orders. Next mission is to tr...188 downloadsupdated 8 y ago
- Expresso zumbiby helisobralUm TD um pouco difícil. Primeira onda aos 10 dias. 100 dias para a vitória.187 downloadsupdated 7 y ago
- 4Million v1.6by the_kilaHistorical fortifications helped this city to survive. Defend it against a gigantic Swarm of over 1 Million Infected attacking in various waves. Final Wave: Day 60187 downloadsupdated 4 y ago
- March of the Deadby Kevlar AxisA fertile, defensible location for a new colony has been discovered. Unfortunately, the dead have followed us to this area. Prepare for a constant strream of attacks daily, waves every 10 days, and expand to claim as much territory as possible before the full horde arrives on day 100.187 downloadsupdated 3 y ago
- 너무 재밌ㄷ..5by REFNI영웅 뮤턴트 맵 뮤턴트 생성 불가 확률강화...제작자 급 똥손은 플레이가 힘들수도 있음187 downloadsupdated 3 y ago
- 基因原体 ( No.73 )by 765611984338825942022.11.30 — 2022.12.07 自娱自乐的地图186 downloadsupdated 4 y ago
- 腹背受敌by 76561198421923997这是一张资源丰富,空间充足的地图图,前期高速发展,后期运用合理的兵种搭配与防御型建筑来抵抗尸潮。 This is a map with abundant resources and sufficient space. It develops rapidly in the early stage, and uses reasonable arms collocation and defensive buildings to resist corpse tide in the later stage.186 downloadsupdated 6 y ago
- One Front Islandby Isaiah 40:31The High Chancellor has offered you a special assignment: preside over a secret peninsular colony, blessed with resources and faced with only one front to be attacked from. But it sounds too good to be true...186 downloadsupdated 2 y ago
- Crazy Mazes - 90 Daysby RawrsuckerNeslted between a series of valleys, your tiny outpost must lean on the expertise of it's senior members to survive a huge horde on it's way to destroy the outpost. 90 days and enough surprises to keep you on your toes. Use the terrain and vets to your advantage. Please give feedback if there is...186 downloadsupdated 8 y ago
- 20 Day Challengeby MikeOnly 1 final wave, clear the map before it. Survive 20 Days!186 downloadsupdated 8 y ago
- The Golden Valeby MagnusAn idyllic valley has been discovered, and it's wilderness has been tamed... but the hordes have found you, and you must defend your newfound paradise. First Wave begins on day 20--Final Wave on day 110.185 downloadsupdated 5 y ago
- Into the Breachby joeyfialaInto the Breach, your colony is at the end of a twisting canyon, waves of the undead, start on day 5 and a new wave comes for you every 2 days, until day 100 and then a final huge wave around day 103 look out for that one it’s a Biggy! So have plenty of snipers and Thanatos ready to repel it.185 downloadsupdated 7 y ago
- Wayward Pinesby Snake93090Surrounded by resources and located in a valley with only one entrance, it seems safe but as the hordes begin to grow to the billions, this last hamlet of civilization is standing on the edge of disaster.185 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.

