They Are Billions on Steam - User reviews, Price & Information
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They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
They Are Billions is a base-building, colony sim and strategy game
developed and published by Numantian Games.
Released on June 18th 2019 is available only on Windows
in 12 languages: English, Spanish - Spain, French, German, Japanese, Korean, Polish, Portuguese - Brazil, Russian, Simplified Chinese, Traditional Chinese and Italian.
It has received 48,765 reviews of which 41,508 were positive and 7,257 were negative resulting in a rating of 8.4 out of 10. 😎
The game is currently priced at 29.99€ on Steam, but you can find it for 25.29€ on Gamivo.
The Steam community has classified They Are Billions into these genres:
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System requirements
These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.
Windows
- OS *: Windows 7, 8, 10 (32 and 64 bits)
- Processor: INTEL, AMD 2 cores CPU at 2Ghz
- Memory: 4 GB RAM
- Graphics: Intel HD3000, Radeon, Nvidia card with shader model 3, 1GB video ram.
- DirectX: Version 9.0c
- Storage: 4 GB available space
- Additional Notes: Minimum resolution: 1360x768, recomended FULL HD 1920x1080.
User reviews & Ratings
Explore reviews from Steam users sharing their experiences and what they love about the game.
They Are Billions is not a strategy game. It is a stress test for your soul. On the surface, it looks like a steampunk RTS about building a colony and holding off zombie hordes. That is a lie. What it actually is: a slow, methodical exercise in dread where perfection is the minimum requirement for survival. You do not lose this game in heroic last stands. You lose it because you missed a single tile. One gap in a wall. One ranger distracted. One infected slipping through the fog. That tiny mistake does not stay tiny. It turns into a full on in-♥♥♥♥♥♥♥-fection in seconds. A house goes down. That spawns four more infected. They sprint. They snowball. They scream. Suddenly your economy collapses, your defenses fold inward, and your entire colony becomes an accelerating meat grinder. The game does not pause. It does not warn you. It lets you watch. The sound design deserves its own mention because it is pure psychological warfare. That first infection noise cuts straight through your spine. If you have played this game, you know the exact sound. Your brain recognizes it before your eyes do. By the time you react, it is already spreading. Expansion is not exciting. It is terrifying. Every inch of fog of war is a potential death sentence. Clearing land feels like defusing bombs while blindfolded. The zombies are fast, relentless, and unforgiving, and the game demands obsessive attention to choke points, patrol routes, and redundancy. One line of defense is failure waiting to happen. Two lines means you are learning. Three lines means you might survive. The brutality is not random. That is what makes it hurt. Every collapse is your fault. You knew better. You told yourself it would be fine. The game remembered. When things go well, They Are Billions feels incredible. You are a paranoid god, tightening the screws, building a machine that holds back extinction by inches. When things go wrong, it is absolute annihilation. No recovery. No mercy. Only the realization that you have to start over and do it cleaner this time. This game does not care about your time. It cares about discipline. If you want a forgiving RTS, walk away. If you want a game where a single lapse turns into total systemic collapse, where tension never lets go, and where victory feels earned through fear and precision, They Are Billions delivers brutality at a surgical level. You were warned.
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Love it. Shame the devs decided they were "done" almost immediately after they dropped the campaign because I would have liked a couple more maps/challenges. The campaign is kind of weak and I definitely had more fun just trying to learn/beat all the different maps on higher difficulties (during early access) and doing the weekly/daily challenges. The achievements are also pretty badly balanced. Some are hyper easy and some are never going to happen. I have over 500 hours played with just over 2m zombie kills and you need 100m for the achievement... yeah nah
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Is this game good? Yes Is this game made for masochists who dont know what the word "fun" means? Yes --- They are Billions is when you take the idea of tower defense, flip it on its head, add colony management to it and then throw a horde mechanic towards the player and yell "Have fun with that one, A**hole!". You min max or you die. You kite or you die. You build the RIGHT colony or you die. You build efficient or you die. You skill proper or you die. I think the one thing the game really has going for it that if you end up failing it doesnt spell disaster. Your save file doesnt get erased. You dont lose any progress other than on the level you played on. You can even reset the entire research tree at no cost whatsoever so you can experiment with what you may be wrong about. That is until you won a game with it. Then you can get screwed on that lol Now would I say that the game is worth 30 bucks? Well it is 6 years old. And the gameplay isnt the most entertaining. Its more a case of "Lock in and enjoy". So if you are that kinda person? Yea it is. If not, wait for a sale.
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I have a love and hate relationship with this game. I enjoy the game play, but with no save scumming, and how one mistake can lead to ruin, the game can feel pretty brutal at times. This game is like a weird mix of RTS and Tower Defense. You gather resources and try to expand your base. Unlike an RTS such as Age of Empires, Warcraft, or StarCraft, you don't have units for gathering resources; resources are instead provided and gathered by buildings. Your buildings for gathering resources needs to be adjacent to said resource, unless they are farms, then they just need to be on grassy fields. There is a bit of focus on min-maxing resource gathering. A lot of it is tile based, and resource gathering is affected by a square area-of-effect around the building, so say there is a position where putting your quarry will net 5 tiles of stones over and other location where you get 4 tiles of stone, you want to place it in the way to get more stones. Additionally you need energy towers which creates an aoe that supplies energy, so you need to continuously create those to expand the area you can build your base in, because every building needs energy. Essentially you want to optimize how you expand the base, paying attention to which resources is bottle-necking the expansion. Eventually you are aiming for a large army and a base that is well walled off with good defensive structures placed strategically at choke points. Now zombies are generally littered around the map. Depending on the map there will be infected colonies which when attacked spawns a lot of powerful zombies. What you want to do is to clear out the map with military units, which will level up to veteran status when they gain experience from killing zombies, making them a much better version of the non-veteran basic version. As the game progresses zombies will occasionally attack in waves. This waves will get progressively stronger until the very final wave, which will spawn a huge amount of zombies from all directions. Now one very brutal thing about this game, is that there is no save slots, at least for the survival mode (which used to be the only mode, before campaign was introduced). For every map you start, you can only save to quite and pause the current map, you can't save when you feel like you are doing well, and reload the save if things don't work out. I guess it makes sense for the kind of game play this game provides, but it can lead to a heavy feelings of time being wasted whenever you play for 1 hour plus only to get screwed over by something you didn't foresee. Also it is very easy on some maps to have a zombie sneak past your soldier and ranger patrol and break into a building. If you are like me who put buildings right to next each other, once a zombie breaks into a building it's over, you are screwed, because any building broken into will spawn additional stronger zombie, and those will quickly break into other buildings. On the plus side, for people who are not amazing at RTS or tower defense player, there is a pause button, so you can pause the game, scroll around the map, and build stuff and send commands to units. That is a very nice feature to have for a casual like me. Overall though, it's a pretty fun game. There is a something addicting about creating a nice little base, trying to maximize resource gathering, and sending soldiers out for zombie hunting missions. Just be warned, one single zombie breaking through your defense can be game over man, game over. PS: F!#$ that cardinal direction. "They are coming from the West." See the skull symbol near the West side of map, position troops to West side. Didn't notice the zombies suddenly taking a detour to the South and aiming right for a weak point where there isn't enough defense. Nevermind I have freaking 40+ sniper deathball, This is like the 4th wave, and they just touched my houses. What I want to say is the zombies are very smart for zombies. They know where you base's weak spot is, and they will aim for that. This kind of feels frustrating, since you'd expect zombies to be more random and just go for first thing they see. Which they kind of do, but the game definitely cheats a little when it comes to the zombie's' pathing, and will direct them to areas of your base that are weaker, at least from my experience. Get Good I guess. Still frustrating to see hours of base building and planning go down the drain.
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🧟 "This game taught me the true meaning of fear. Also, never trust a quiet map corner." 🧱 They Are Billions isn’t a strategy game. It’s a test of your panic threshold. You’ll build up a thriving steampunk colony, admire your perfectly optimized resource lines, proudly watch your soldiers patrol the gates... And then a single infected gets through one tent. Twelve seconds later: Half your population is zombies. Your army is screaming. You’re crying. The music swells into “You messed up BIG TIME” mode. You try to pause. It’s already too late. You stare in horror as your empire falls to Barbara, the Infected Peasant. 10/10. 🎮 What makes it incredible? ⚙️ Base-building is precise, satisfying, and endlessly replayable. 🧠 Every decision matters — your placement, your expansion timing, your unit composition. 💀 The tension is real. You know the final wave is coming. And you’ll never feel ready. 🎵 The soundtrack? Pure cinematic dread. 🤖 Art + style? Steampunk zombie apocalypse has never looked this good. 🔥 When you survive the final wave? You stand up and clap for yourself. And then do it again. Harder. With fewer walls. Because you’re a glutton for pain. Things I've learned from They Are Billions: • Every chokepoint is a lie. • Ballistas are my emotional support towers. • A Thanatos a day keeps the swarm away. • If the map gives you too much room to breathe, it's a trap. • Saving the game won’t save you. 💬 TL;DR: This game doesn’t just kill you. It punishes arrogance. It rewards planning. And it delivers some of the most intense victories and crushing defeats I’ve ever experienced in an RTS. 🧟♂️ “They are billions,” the game warns you. And you nod… confident in your walls… Until they really are. 10/10. Would build, panic, and die again. FOR THE EMPIRE. 🏰🔥
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Frequently Asked Questions
They Are Billions is currently priced at 29.99€ on Steam.
They Are Billions is currently not on sale. You can purchase it for 29.99€ on Steam.
They Are Billions received 41,508 positive votes out of a total of 48,765 achieving a rating of 8.38.
😎
They Are Billions was developed and published by Numantian Games.
They Are Billions is playable and fully supported on Windows.
They Are Billions is not playable on MacOS.
They Are Billions is not playable on Linux.
They Are Billions is a single-player game.
There is a DLC available for They Are Billions. Explore additional content available for They Are Billions on Steam.
They Are Billions is fully integrated with Steam Workshop. Visit Steam Workshop.
They Are Billions supports Remote Play on Tablet. Discover more about Steam Remote Play.
They Are Billions is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.
You can find solutions or submit a support ticket by visiting the Steam Support page for They Are Billions.
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Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.
Last Updates| Steam data | 13 March 2026 06:25 |
|---|---|
| SteamSpy data | 09 March 2026 10:14 |
| Steam price | 15 March 2026 04:42 |
| Steam reviews | 13 March 2026 16:06 |
If you'd like to dive deeper into the details about They Are Billions, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.
- SteamDB - A comprehensive database of everything on Steam about They Are Billions
- SteamCharts - Analysis of They Are Billions concurrent players on Steam
- ProtonDB - Crowdsourced reports on Linux and Steam Deck They Are Billions compatibility
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Game modes
Features
Online players
1,587
Developer
Numantian Games
Publisher
Numantian Games
Release
18 Jun 2019
Platforms
Remote Play
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