The best aliens indie games, ranked by reviews

Data report Built from live indielist data on 2026-06-13. Rankings update as data changes.

indielist tracks 16 aliens indie games on Steam, holding 1,175,738 reviews at an average of 88% 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 409,883 reviews. Figures are tracked by indielist; sales numbers are estimates that each expand into their full formula.

The ranking

1. Lethal Company · 409,883 reviews · 97% positive · 2023
2. Subnautica · 333,593 reviews · 97% positive · 2018
3. Black Mesa · 132,882 reviews · 95% positive · 2020
4. Subnautica: Below Zero · 97,862 reviews · 90% positive · 2021
5. Marvel's Guardians of the Galaxy · 44,376 reviews · 94% positive · 2021
6. Prey · 37,157 reviews · 91% positive · 2017
7. Serious Sam 3: BFE · 28,456 reviews · 88% positive · 2011
8. Aliens: Fireteam Elite · 26,702 reviews · 80% positive · 2021
9. Surgeon Simulator · 16,857 reviews · 82% positive · 2013
10. Breathedge · 16,280 reviews · 82% positive · 2021
11. Natural Selection 2 · 13,342 reviews · 85% positive · 2012
12. Axiom Verge · 6,522 reviews · 90% positive · 2015
13. Starcom: Unknown Space · 4,330 reviews · 93% positive · 2024
14. Star Valor · 3,354 reviews · 89% positive · 2022
15. Megaton Rainfall · 2,234 reviews · 72% positive · 2017
16. The Sapling · 1,908 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 estimates, not official sales data.

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