PCGame

They Are Billions

Real-time colony defense against relentless post-apocalyptic zombie swarms

Numantian Games · Released Jun 18, 2019

Strategy

Reviews
Very Positive
84% of 48K
Recent reviews
Very Positive
80% of 128 in 30 days
Players
2,225
daily peak, Nov 7, 2026
Steam Deck
Playable
Last update on Steam
9 months ago
Jan 22, 2026
Minimum PC
HD3000
4 GB RAM · 4 GB disk
Full requirements

Metacritic: 77/100 (critic reviews)

What is They Are Billions?

A real-time strategy game with pause, set after a zombie apocalypse in the distant future. You gather resources, expand and fortify colonies, train an army, and hold off infected swarms across campaign missions or randomized survival maps.

For you if...

  • +you enjoy demanding base building with little room for error
  • +you prefer replayable randomized survival maps
  • +you want real-time strategy you can pause

Not for you if...

  • −you want forgiving missions with manual saves or checkpoints
  • −you prefer cooperative or multiplayer strategy
  • −you dislike slow resource buildup and punishing restarts

What players say

84% of 47,695 reviews are positive · 80% of 128 in the last 30 days

Players praise the base-building loop, economy planning, and the payoff of watching prepared defenses stop large hordes, especially in survival mode. The most common complaints target the campaign’s tedious hero missions, severe difficulty spikes, and lack of manual or mid-mission saves, which can turn one mistake into a full restart.

Players over time

▲ +28% vs a month ago

Players online on Steam, one sample a day.

Highest since Sep 2026: 2,605 players on Nov 1, 2026.

Show the data
DayPlayers
Nov 7, 20262,225
Nov 6, 20261,608
Nov 5, 20261,628
Nov 4, 20261,852
Nov 3, 20261,899
Nov 2, 20261,872
Nov 1, 20262,605
Oct 31, 20262,366
Oct 30, 20261,797
Oct 29, 20261,715
Oct 28, 20261,795
Oct 27, 20261,677
Oct 26, 20261,795
Oct 25, 20262,388
Oct 24, 20261,853
Oct 23, 20261,603
Oct 22, 20261,507
Oct 21, 20261,604
Oct 20, 20261,665
Oct 19, 20261,716
Oct 18, 20262,244
Oct 17, 20261,955
Oct 16, 20261,556
Oct 15, 20260
Oct 14, 20261,540
Oct 13, 20261,492
Oct 12, 20261,597
Oct 11, 20261,951
Oct 10, 20261,608
Oct 9, 20261,477
Oct 8, 20261,384
Oct 7, 20261,512
Oct 6, 20261,402
Oct 5, 20261,660
Oct 4, 20261,676
Oct 3, 20261,639
Oct 2, 20261,520
Oct 1, 20261,599
Sep 30, 20261,432
Sep 29, 20261,429
Sep 28, 20261,522
Sep 27, 20261,693
Sep 26, 20261,754
Sep 25, 20261,612
Sep 24, 20261,355
Sep 23, 20261,978
Sep 23, 20261,206
Sep 22, 20261,133
Sep 21, 20261,706

How many players finish They Are Billions?

5.9% of Steam players have unlocked «For Quintus! Level 1», the achievement for finishing the main story.

Share of everyone who owns the game on Steam, including those who barely played it. Updated weekly.

Screenshots and trailer

They Are Billions screenshot 1

They Are Billions system requirements

Minimum: HD3000, 4 GB RAM, 4 GB of disk space.

As published by the developer.

Can my PC run They Are Billions?

Tell us your graphics card once and every game page will answer this for you.

Set up my PC →

Minimum

OS
Windows 7, 8, 10 (32 and 64 bits)
Processor
INTEL, AMD 2 cores CPU at 2Ghz
Graphics
Intel HD3000, Radeon, Nvidia card with shader model 3, 1GB video ram.
Memory
4 GB RAM
Storage
4 GB available space
DirectX
Version 9.0c
Notes
Minimum resolution: 1360x768, recomended FULL HD 1920x1080.

Recommended

OS
Windows 7, 8, 10 (64 bits)
Processor
INTEL. AMD 4 cores CPU at 3Ghz
Graphics
Radeon 7950 or above, Nvidia GTX 670 or above. 4GB video ram.
Memory
8 GB RAM
Storage
4 GB available space
DirectX
Version 9.0c
Notes
4K Monitor (3840x2160)

Does They Are Billions have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does They Are Billions run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • Some text entry requires manually opening the on-screen keyboard
  • Some in-game text is small and may be hard to read
  • All functionality is accessible with the default controller configuration
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows
Achievements
34
Steam features
Workshop, Cloud saves, Family Sharing, Trading cards
Languages
Full audio: English. Text only: Spanish - Spain, French, German, Japanese, Korean, Polish, Portuguese - Brazil, Russian, Simplified Chinese, Traditional Chinese, Italian.

Does They Are Billions use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Nov 6, 2026. How to filter AI games on Steam

Tags

Recent updates

1 DLC available.

Games like They Are Billions