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
- The city of blissby RoharasZombies have overrun the region before the city was able to build up their defenses. A massive swarm of zombies is slowly creeping in from the north and is estimated to arrive in aproximately 40 days. You will need to expand your base to be able to build sufficient defences but beware, smaller ho...133 downloadsupdated 8 y ago
- No Research Nightmareby MasterMaulA fairly standard map, though pretty difficult, 10 waves, lots of VOD's and research stations have been placed in various locations (marked on the map) making it much harder to expand and research up. There are some buildings and resources placed on the map for support. This map is for the vetera...133 downloadsupdated 7 y ago
- 爽图by 76561198801220592133 downloadsupdated 7 y ago
- Wood Nothingby IdealIdeasYou started a city in an abandoned tree farm. There doesnt appear to be anything else for miles. Hordes of the infected seem to be comming from everywhere! Go check out Wood Nothing DX instead, its more content packed!133 downloadsupdated 8 y ago
- 战役科技重置与撤销 | Campaign Tech Respec [中/EN]# 战役科技重置与撤销 v1.1.2 # Campaign Tech Reset and Undo v1.1.2 安装教程: 1. 在本文件所在目录双击 `Install.cmd`。 2. 安装器自动寻找 Steam 库中的游戏;必要时选择包含 `TheyAreBillions.exe` 的游戏文件夹。 3. 正常启动游戏,打开战役大地图的科技页。 左上角的“重置科技 ”会返还已投入的研究点,并保留初始免费科技。再次左键点击已点亮科技可撤销,后续依赖科技也会一并退款,过关后仍可使用。“还原操作 ”恢复当前会话的最近一次重置/撤销;重新加点、关卡进度改变、读档或退出后不能还原旧操作。 本m...133 downloadsupdated 12 d ago
- 万万没想到系列三by 76561198914654153万万没想到,有牙喜欢的水晶宫有两个哦!132 downloadsupdated 7 y ago
- 未知图by Lucks萌新作图:第三个房区有陷阱,有足够的兵才进去,最后一天1500-2020个巨人,随机出的,右上角和中间哪里可能会聚怪会有点卡,清理完就不卡来,我已经测试过来,希望你们玩的开心,谢谢 本图已修复触发陷阱没尸潮!132 downloadsupdated 7 y ago
- 200000 Harpyby きまぐれきつね放置するだけ…。ゲーム内時間(6日)実時間15~18分で200000のハーピーを倒します これを500回繰り返すだけで、 感染者キラー レベル 10 の実績を解除できます。132 downloadsupdated 7 y ago
- 猪头by 龙飞腾达地图的最上面是个猪头,尸潮从猪耳朵那里生成,70天最后一波,祝你好运.132 downloadsupdated 7 y ago
- 美国梦/American Dreamby 神奇咕咕在哪里自由美利坚,————————! Make America great again! 剧情的大部分灵感都来自于《逃离僵尸岛》这部电影。主要讨论了难民的接收问题和(僵尸的)人权问题。 Most of the story is inspired by the movie The Rezort in 2015. The main discussion is on the reception of refugees and (zombies‘) human rights issues. 80天,南方东方两个口, 开局2泰坦,最后一波每边250大胖300高达 80 days, S & E, 2 ti...131 downloadsupdated 6 y ago
- 拒绝当房奴by 快乐的99815天开始第一波,共220天。守一个口。131 downloadsupdated 7 y ago
- Fallen Ruinsby Hans LoloNOT WORKING ANYMORE. UPDATE DESTROYED IT *80 Days *Brutal Difficulty *Hard Map Map targeted for experienced players. All workshops are denied. In order to get technology you need to destroy Vods, which are marked on the map. Mouseover the objectives shown in minimap to get information. Main waves...131 downloadsupdated 8 y ago
- 룰렛by 참개구리 폴짝폴짝룰렛를 돌려 군인을 키워보세요 히히 각 각의 룰렛은 100,75,50,25,10%의 당첨확률을 갖고있습니다. 당첨 중에 제료가 1/9확률로 나오고 그걸로 더욱 강한 장비를 만들어 줄수있습니다. 이중가챠?!!!!?!!!? 맵에 사용되는 스탯계산식 군인최종공격력=(16+고정공격력)*(최종공격력) 군인최종체력=(120+고정체력)*(최종체력) 군인최종사거리=(5+고정사거리)*(최종사거리) 군인최종달리기=(2.4+고정달리기)*(최종달리기) 군인공격속도=1000/(공격속도+(공격속도*최종공속/100))131 downloadsupdated 16 mo ago
- Rebuild The Deep Dark Colonyby 76561198354351858It is a very dark forest which I think is impossible and it has the hardest of infected. You need to rebuild the deep dark colony back from the infected. We also need to rescue commander Kibitz to get new tech.130 downloadsupdated 5 y ago
- Defend the research station 1.1 betaby DeaxusHumanity last hope relies on the research station completing it's anti-viral research. Defend it at all costs. The past months the zombies have become more intelligent resulting in the fall of dozens of colonies. Humanity started their anti-viral research a while ago but due the increasing danger...130 downloadsupdated 8 y ago
- Behemoths lairby this_mail- 300 days gameplay - Limited space for buildings - Classic mode - No mutations - No altered rules - No giants - No oil spots so no titans - No fun for chinese gamers Win conditions: 6400+ colonists or survive on final wave at day 300 Tips: - build 1 shock tower + 3 ballistas before day 24 at wes...130 downloadsupdated 12 mo ago
- 棒棒糖by 76561198808123634130 downloadsupdated 6 y ago
- Infested Cityby IdealIdeasA city has fallen to the hordes of the infected. Its your job to purge the hordes and rebuild the city as it was part of a huge trade network. You win when you clear out enough infected or survive 60 days130 downloadsupdated 8 y ago
- Only Units Defenseby 76561198797997827It's a mode of defending the colonies using only units. Stop them by strategically positioning the units given before each wave. I recommend a stop function. Show us the best defense with your units! Good luck! _Diger130 downloadsupdated 7 y ago
- 终极之战之《第四篇》by 76561198361197549加油~带领您的团队走向胜利!! 争取每一分每一秒!130 downloadsupdated 7 y ago
- 疯狂大口by 76561198978544019第一次作图,有所不足之处请多多谅解。此图路口都有陷阱,请注意。129 downloadsupdated 7 y ago
- noMansLandby ZeddYou can't produce food, but you can have more by trading with neighboring cities. Take care, opening a tradeline attracts infecteds129 downloadsupdated 7 y ago
- TF2 Apocalypse 2: Holdoutby Driveway ToadAfter reuniting at Mann Co. the mercs devise a plan to end the apocalypse, but there is an old face that plans to stop them before they do.129 downloadsupdated 7 y ago
- 50 Day challengeby WillolNot impossible! - 50 day challenge - 1 point of entry into base, large resource nodes / space. Starting with tents/energy. One scripterror on start, however makes no difference to play.129 downloadsupdated 8 y ago
- Wrath of the Titans! P.2by SirczerPart 2 of the Wrath of the Titans map! Map is really challenging in terms of clearing and waves and at the same time VERY player friendly but u need to think fast and take risks often and what's more important there are lots of rewards and lil events 120d days128 downloadsupdated 6 y ago
- 800生存【加强版】-Cby 76561198349892549128 downloadsupdated 12 mo ago
- (007) paradise lost 2 multiple upgradesby 76561198439066145Look out for upgrades. Next in series.. Challenging map.. enjoy !128 downloadsupdated 9 mo ago
- Deadmen Walkingby Serial******** Grasslands map140days ********* City of the Dead in the south.. Zombies Incomming small packs all the time each time deafeated they come back with increased numbers Big wave @ 40 - 60 -85- 100 -120 -140 days Final Event (swarm @ 140days) No GIANT spam Difficulty Nightmare --> hordes size...128 downloadsupdated 6 y ago
- Byzantiumby 76561198394456563This is the corrected version of a map I was working on for a while. The main theme is a siege simulation, loosely based on an actual historical situation that took place in Constantinople the capital of the Byzantine Empire in 1453. The relevant real (as well as imaginary) info and instructions...128 downloadsupdated 6 y ago
- 终极之战之《终章》by 76561198361197549这将是终极之战系类的最后一个章节! 在一个资源极度匮乏的地方! 您是否能带您的团队获得胜利!加油! 人类的指挥官!!!128 downloadsupdated 7 y ago
- Portal 40dayby Eomday 01 dressd1 day 03 Repetition day 05 day 10 day 15 day 20 day 22 Repetition day 25 day 30 day 35 day 40 final 수정사항이 적용되지 않을시 재구독 바랍니다.128 downloadsupdated 8 y ago
- Safe Zoneby IdlehandsThe town is about to fall and there's nothing that we can do to save it. This is a supply base so you will find lots of resources scattered around. >Main base is safe for now but your defences are down power packs in starting area. >You have troops in town which need to leave before they are over...128 downloadsupdated 8 y ago
- 万万没想到系列之二by 76561198914654153万万没想到你又开饭了 万万没想到之骨语五开始啦 怕不怕 2000难度 来吧小朋友们127 downloadsupdated 7 y ago
- The Compound Ep.2 :Tunnelsby europa_from_marketingThis is the second Episode in The Compound. This is Episode 2: Tunnels Synopsis of the story (You will get the full story when you play the level) After clearing the compound, you started clearing the tunnels. One unit suffered a cave-in and cannot escape. Rescue them. Also, find out who or what...127 downloadsupdated 8 y ago
- 룰렛2by 참개구리 폴짝폴짝룰렛를 돌려 군인을 키워보세요 히히 각 각의 룰렛은 100,75,50,25,10%의 당첨확률을 갖고있습니다. 최고 난이도 71일 클 완료(1,2번째 룰렛 보상 총3개로 시작함)127 downloadsupdated 13 mo ago
- 435345344564564564by 76561198810898673127 downloadsupdated 3 y ago
- island fortby 76561199012520290a fort to stop the hord126 downloadsupdated 6 y ago
- Ep 1: The Infected Lowlandsby sharkyThe Empire has fallen once again leaving a small troop to be stranded in a infected area with no one else. Your mission is to survive up to day 75 with a mazzive army that can take down snything in there way! But your objective right now is to find survivor however you only have 85 days to escape!126 downloadsupdated 4 y ago
- 重重包围2by 76561198935609670本图45天和最后一波空降!!注意 数字1——N数字二——W 数字3——E数字4——s 按照水友要求更改了地图僵尸! 有问题请在下发留言谢谢!126 downloadsupdated 7 y ago
- 资源匮乏_噩梦by 76561198963665410寥寥无几的资源,只有市场来挽救126 downloadsupdated 8 y ago
- Final Standby slash31337One bridge, one base, rich resources, and billions of zombies. Have fun!126 downloadsupdated 6 y ago
- One entry [medium] 0.94 Betaby 76561198879379078One entry Just one entry on the map and not so many zombies at the start. In this version you get less resources at the begin and more zombies come at every wave. -Also some small updates to the map -and we have winter now. This is the first map made by me in They Are Billions please give me feed...125 downloadsupdated 6 y ago
- Brace Yourselfby Jeremiah 5.4-7"Brace Yourself" Exactly. This time, the mission is everything but peaceful. Besides a lot more infected around, there are enviromental challenges and danger is lingering in every corner. Your target is, to find and rescue a long lost scientist and the remains of his work. You will also meet old...125 downloadsupdated 5 y ago
- 只有女兵....嗎? only female......maybe?by Kmichi125 downloadsupdated 6 y ago
- Valley of the Giantsby Seymour GutzGiant attacks begin on Day 10. To win, try to survive 200 days. Only giants, no other zombie types. Days 10-19 = 1 Giant every day Days 20-29 = 2 Giants every day Days 30-39 = 3 Giants every day Days 40-49 = 4 Giants every day Days 50-59 = 5 Giants every day etc etc until ... Day 190-199 = 19 Gia...125 downloadsupdated 8 y ago
- Hell Nightby Chevalier MortaliseRandomGenMap With Bonus For All Unit & Zombie too! Prepare for an HELL NIGHT !!!! You had to survive 90 days. some rules will be forced and others will be chosen at the start of the game then others will follow depending on the progress of the game Sorry for my English this is my first map try to...124 downloadsupdated 6 y ago
- Survival but not awefulby Corry681Just a survival with slightly better swarm frequencies and a little help starting off. Feel free to to leave anything you would like to see in the comments below.124 downloadsupdated 8 y ago
- 沙漠生存75天by 周蛤鱼基于原800生存地图,尸潮数量增加,基地有科技可选,到达40天或者建造钢铁铸造厂后僵尸血量翻倍,金钱产出为0且储量为0时有惩罚,75天最终尸潮。124 downloadsupdated 11 mo 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.

