-20%
View on Steam$23.99
$29.99
Estimated lifetime revenue
$11.41M
Gross, before Steam's cut
Net revenue
$8.06M
After Steam's 29% cut
Units sold
771.6K
≈ 15 sales per review
Reviews
51,549
Very Positive85% positive
Playing now
2,506
9-day peak 2,987 · low 1,473
New reviews, last 9 days
+28
≈ 3 a day since Oct 7
History
Oct 7 – Oct 16
51.6K51.5K51.5K51.5K
Oct 7Oct 11Oct 16
Total Steam reviews. The slope is the signal: a steady climb long after launch means the game is still selling.
How it compares
Building →Against the 120 most-reviewed Building games on Steam
Outearns 44% of them — below the group's median.
Median
$13.19M
56,821 reviews
Top 10% start at
$66.90M
This game
$11.41M
43rd 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
- Oct 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.