The best aliens indie games, ranked by reviews

Data report Assembled from live indielist data on 2026-06-06. Rankings update as data changes.

indielist tracks 10 aliens indie games on Steam, holding 1,003,314 reviews at an average of 90% positive. This list ranks them by Steam review count, the most reliable public sales proxy, with a white-box sales estimate behind every title. The most reviewed is Lethal Company with 409,614 reviews. Figures are tracked by indielist; sales numbers are modeled estimates that each expand into their full formula.

The ranking

1. Lethal Company · 409,614 reviews · 97% positive · 2023
2. Subnautica · 331,738 reviews · 97% positive · 2018
3. Black Mesa · 132,752 reviews · 95% positive · 2020
4. Subnautica: Below Zero · 97,547 reviews · 90% positive · 2021
5. Natural Selection 2 · 13,342 reviews · 85% positive · 2012
6. Axiom Verge · 6,513 reviews · 90% positive · 2015
7. Starcom: Unknown Space · 4,322 reviews · 93% positive · 2024
8. Star Valor · 3,354 reviews · 89% positive · 2022
9. Megaton Rainfall · 2,233 reviews · 72% positive · 2017
10. The Sapling · 1,899 reviews · 90% positive · 2019

How this list is built

Games are ranked by Steam review count, the most reliable public proxy for sales when actual figures are private. Each title links to its indielist page, where the white-box sales estimate expands into the full Boxleiter formula, so you can audit the number rather than trust a black box. Review counts come from Steam; sales figures are modeled estimates, not official sales data.

Want the underlying estimate for your own game? Try the sales estimator, or browse the full game directory.