The best aliens indie games, ranked by reviews

Data report Built from live indielist data on 2026-07-24. Rankings update as data changes.

indielist tracks 17 aliens indie games on Steam, holding 1,074,866 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 410,693 reviews. Figures are tracked by indielist; sales numbers are estimates that each expand into their full formula.

The ranking

1. Lethal Company · 410,693 reviews · 97% positive · 2023
2. Subnautica · 338,617 reviews · 97% positive · 2018
3. Black Mesa · 133,917 reviews · 95% positive · 2020
4. Subnautica: Below Zero · 98,838 reviews · 90% positive · 2021
5. Serious Sam 3: BFE · 21,729 reviews · 88% positive · 2011
6. Surgeon Simulator · 16,875 reviews · 82% positive · 2013
7. Breathedge · 14,366 reviews · 82% positive · 2021
8. Natural Selection 2 · 8,618 reviews · 85% positive · 2012
9. Axiom Verge · 6,559 reviews · 90% positive · 2015
10. Freedom Planet · 4,891 reviews · 95% positive · 2014
11. Starcom: Unknown Space · 4,418 reviews · 92% positive · 2024
12. Silica · 4,399 reviews · 76% positive · 2023
13. Star Valor · 3,404 reviews · 88% positive · 2022
14. Gatekeeper · 2,681 reviews · 84% positive · 2025
15. Megaton Rainfall · 2,273 reviews · 72% positive · 2017
16. In Other Waters · 2,069 reviews · 87% positive · 2020
17. Supplice · 519 reviews · 87% positive · 2023

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.