$29.99
Estimated lifetime revenue
$9.17M
Gross, before Steam's cut
Net revenue
$6.42M
After Steam's 30% cut
Units sold
620.2K
≈ 12 sales per review
Reviews
51,445
Very Positive85% positive
Playing now
1,014
Not enough history yet
New reviews, last 30 days
—
Not enough history yet
History
Not enough history yet — the chart fills in as daily snapshots accumulate.
How it compares
Building →Against the 100 most-reviewed Building games on Steam
Outearns 34% of them — below the group's median.
Median
$15.05M
73,019 reviews
Top 10% start at
$65.34M
This game
$9.17M
31st pct. by reviews
The group is the games with the most reviews under this tag, not every release, so it leans toward games that sold — a percentile here is a harder test than the same percentile across the whole store would be.
About
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?
- Developer
- Numantian Games
- Publisher
- Numantian Games
- Genre
- Building
- Released
- Jun 18, 2019
- Steam app ID
- 644930
- Data updated
- Sep 16, 2026
Estimates, not reported sales. No developer-published figures are on file for this game. See the methodology for how the numbers are built.