They Are Billions ▶ Trailer
They Are Billions screenshot 1They Are Billions screenshot 2
StrategyBase BuildingColony SimZombiesSurvivalRTS

2,174 playing

Peak in the last 24 hours: 3,338

Peak in the last 7 days: 3,706

They Are Billions Steam store

Game description

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?

Basic info

DeveloperNumantian Games
PublisherNumantian Games
PlatformsWindows
Steam DeckPlayable
Release dateJun 18, 2019
Price

Prices by IsThereAnyDeal

Minimum specs

OSWindows 7, 8, 10 (32 and 64 bits)
ProcessorINTEL, AMD 2 cores CPU at 2Ghz
Memory4 GB
GraphicsIntel HD3000, Radeon, Nvidia card with shader model 3, 1GB video ram.
Storage4 GB
steamyze

Review Analysis Score

Based on 454 reviews from the past 1 year

78.5/ 100
Bottom 50%

Steam rating: Very Positive (85%)

Metacritic: 77 /100

Review analysis summary (Reviewed Oct 22, 2026)

Holding a steampunk colony against endless zombie hordes is the core of They Are Billions, a punishing RTS that scores 78.5.

👍 Strengths

197 reviews find it fun and hard to put down, with some calling it a refreshing mix of colony building and RTS. 44 praise the brutal difficulty, saying the tension never lets go and every victory feels earned. 38 enjoy the strategy, with careful planning, tech choices and unit and building combinations that reward thought. Content Volume ranks 590th of 1351, and Visuals & Sound ranks 819th of 1249.

👎 Where it falls short

91 reviews say the difficulty turns punishing because there is no proper save or retry, so a single mistake can waste an hour or more on a long map. 27 criticize weak guidance and a lack of tutorials, and some dislike campaign missions built around hunting for hidden items. 26 want more variety, citing too few units, towers and enemies and hero missions that feel repetitive. Others mention that support for the game ended soon after the campaign launched. Tech & Support ranks 1089th of 1399, and Gameplay ranks 827th of 1396.

Representative reviews Original reviews ↗

“refreshing RTS with nice new concepts, played 40+ hours” · 197 reviews
“RTS and tower defence gameplay is solid” · 38 reviews
“game is incredibly pretty with great graphics” · 28 reviews

How it holds up

−50+5

Controls, difficulty, progression and depth
Mentioned in 71% of reviews · Bottom 50% of the games we've analyzed

Strategy +2.75 · Depth of builds, tactics, and meaningful choices
Positive “RTS and tower defence gameplay is solid” · 38 reviews
Negative “tech tree feels set in stone, limited viable builds at higher difficulties” · 2 reviews

Progression 18% · Difficulty 49% · Onboarding 17% · Freedom 6% · Controls & feel 11%

Plot, characters and the world
Mentioned in 18% of reviews · Bottom 20% of the games we've analyzed

World +2.99 · Lore, atmosphere, and how immersive the setting is
Positive “likes zombie and base-building combination” · 10 reviews

Story 10% · Characters 1%

How much there is to do, variety and replay value
Mentioned in 33% of reviews · Top 50% of the games we've analyzed

Replayability +3.20 · Reasons to play again — runs, randomness, New Game+
Positive “1300+ hours played, every run different with strategic depth and balance management” · 23 reviews
Negative “hero missions are tedious and frustrating, killing replayability” · 2 reviews

Volume 17% · Variety 14%

Graphics, art style, music and sound
Mentioned in 15% of reviews · Bottom 40% of the games we've analyzed

Visuals +3.04 · Graphics, art style, and animation
Positive “game is incredibly pretty with great graphics” · 28 reviews
Negative “graphics are a bit dated” · 1 review

Audio 7%

Playing with others, the community and servers

Not enough data — only 2% of reviews mention this.

Playing together -0.27 · Fun of playing with friends, teammates, or rivals

Community 0% · Servers & Connection 0%

Pricing, cheaters, balance and matchmaking
Mentioned in 10% of reviews · Top 50% of the games we've analyzed

Balance -0.12 · Whether classes, weapons, and builds are evenly matched
Negative “tech tree balance needs improvement in campaign mode” · 10 reviews
Positive “excellent balance and mechanics” · 3 reviews

Anti-cheat 0% · Pricing 3% · Matchmaking 0%

Bugs, performance and developer support
Mentioned in 20% of reviews · Bottom 30% of the games we've analyzed

Developer support -0.31 · Updates, patches, and how devs respond to players
Negative “basically no support since release, many unresolved problems” · 24 reviews

Stability 8% · Performance 3%

Grey means too few reviews mention it to trust. — means almost no reviews mention it.

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