
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?
Modeled estimate, not a reported figure. How we estimate →
Prices
Each in the currency that store quoted — not converted: the gap between two rows is the publisher's pricing, not an exchange rate.
About







Add-ons
Each DLC is estimated with the same model as a game, then summed — a modeled figure, not reported DLC sales.
Sums Steam only; PlayStation, GOG, Nintendo publish no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $29.99 | 51.5Kreviews | 85% | — | $28M |
| $29.99 | 1.5Kratings | 86% | — | not modelled | |
Updates
Build ids and update times come straight from Steam's PICS — the same source SteamDB reads. Patch history grows as we record new builds.
Engagement
Reviews
Themes across 970 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
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Amazing game, very stressful though. One mistake can doom the colony, it shows good how infections spread in a closed environment.
挺好玩的一个塔防游戏
Media

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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, Spanish - Spain, French, German, Japanese, Korean, Polish, Portuguese - Brazil, Russian, Simplified Chinese, Traditional Chinese, Italian*languages with full audio support
| $29.99 |
| 189ratings |
| 76% |
| — |
| not modelled |
| $29.99 | — | — | — | not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Hours played at review time, across 976 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
不错,紧张刺激
I like playing custom campaigns
不知不觉就开饭!
たのしい
한판 한판 시간이 좀 걸리긴 하지만. 재밌음
As you can see from the sheer amount of time I've spent playing this game in less than 5 years, I love it. Even though most of the criticism in the other reviews actually has a point. But in the end, it's simple: You have to get used to the game and its mechanics. Playing on higher difficulties is sometimes just insane. Even so, I've got pretty good throughout the years, and I definitely love the steam-punk art style and the general setting. Also, killing zombies is satisfying, specially with a Shocking Tower. Oh, and by the way: I'm actually a fan of the campaign that was added (for free!) to the game at some point. Takes about 75 hours if you take your time and play on 500+ % difficulty. Yes, the hero missions are sometimes tedious, but I generally like them. Whoever likes tower defense games, plus resource management and (!) thoughtfully planning where to build your structures, this is for you.
好玩好玩 什么时候出2呀 很急呀 等好几年了
Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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