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.

The Steam community has classified They Are Billions into these genres:

Base-Building Colony Sim Strategy Zombies Survival RTS Tower Defense City Builder Steampunk Building Post-apocalyptic Singleplayer Resource Management Real-Time with Pause Difficult Tactical Management Indie Isometric Multiplayer

Media & Screenshots

Get an in-depth look at They Are Billions through various videos and screenshots.

They Are Billions screenshot
They Are Billions screenshot
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They Are Billions screenshot
They Are Billions screenshot
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They Are Billions screenshot
They Are Billions screenshot
They Are Billions screenshot
They Are Billions screenshot
They Are Billions screenshot
They Are Billions screenshot
They Are Billions screenshot

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.

420 hours played
March 2026
As someone who thoroughly enjoys RTS games, I can confirm that this game is worth it every time. The controls aren't too bad, the gameplay loop is great and intense, the custom games are fun, the campaign (except hero missions) are enjoyable, and the difficulty range is perfect for all who would give the game a try. I, as of today, have beaten the campaign completely on 800% difficulty. I might come back to this game one day after getting the campaign revamp mod or something, but for now, I bid this game farewell! 400 hours of gameplay and all of it has been wonderful!
Read the review on Steam
1692 hours played
Jan. 2026
1542 Hours of gameplay. Still playing everyday. Enough said. Would love a follow up game one day.
Read the review on Steam
163 hours played
Jan. 2026
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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537 hours played
Dec. 2025
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
Read the review on Steam
63 hours played
Oct. 2025
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.
Read the review on Steam

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Frequently Asked Questions

They Are Billions is currently priced at 29.99€ on Steam.

No, They Are Billions is currently not on sale. You can purchase it for 29.99€ on Steam.

Yes, 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.

Yes, They Are Billions is playable and fully supported on Windows.

No, They Are Billions is not playable on MacOS.

No, They Are Billions is not playable on Linux.

They Are Billions is a single-player game.

Yes, there is a DLC available for They Are Billions. Explore additional content available for They Are Billions on Steam.

Yes, They Are Billions is fully integrated with Steam Workshop. Visit Steam Workshop.

Yes, They Are Billions supports Remote Play on Tablet. Discover more about Steam Remote Play.

Yes, 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.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

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 08 June 2026 14:20
SteamSpy data 10 June 2026 08:12
Steam price 13 June 2026 12:44
Steam reviews 11 June 2026 19:53

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
They Are Billions
🔥 Deal 29.99€ Buy Now 39.04€ Visit Store 40.22€ Visit Store
Rating
8.4
41,508
7,257
Game modes
Features
Online players
1,320
Developer
Numantian Games
Publisher
Numantian Games
Release 18 Jun 2019
Platforms
Remote Play
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