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indielist (beta)

The best science indie games, ranked by reviews

5 min read for players

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Data report Built from live indielist data on 2026-09-07. Rankings update as data changes.

indielist tracks 19 science indie games on Steam, holding 308,103 reviews at an average of 87% 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 Kerbal Space Program with 120,435 reviews. Figures are tracked by indielist; sales numbers are estimates that each expand into their full formula.

The ranking

  1. Kerbal Space Program · 120,435 reviews · 96% positive · 2015
  2. The Talos Principle · 29,216 reviews · 95% positive · 2014
  3. Kerbal Space Program 2 · 27,918 reviews · 26% positive · 2023
  4. Universe Sandbox · 27,771 reviews · 96% positive · 2015
  5. Automation - The Car Company Tycoon Game · 16,775 reviews · 94% positive · 2015
  6. SpaceEngine · 15,759 reviews · 96% positive · 2019
  7. Liftoff®: FPV Drone Racing · 13,957 reviews · 95% positive · 2018
  8. Ancestors: The Humankind Odyssey · 9,778 reviews · 79% positive · 2020
  9. Spaceflight Simulator · 9,389 reviews · 97% positive · 2022
  10. Uncrashed : FPV Drone Simulator · 7,686 reviews · 95% positive · 2021
  11. while True: learn() · 7,313 reviews · 91% positive · 2019
  12. Prehistoric Kingdom · 5,602 reviews · 90% positive · 2022
  13. TRYP FPV: Drone Racer Simulator · 3,149 reviews · 86% positive · 2022
  14. Juno: New Origins · 3,080 reviews · 89% positive · 2023
  15. CATO: Buttered Cat · 2,783 reviews · 98% positive · 2024
  16. SpaceChem · 2,624 reviews · 92% positive · 2011
  17. Flyout · 2,131 reviews · 84% positive · 2023
  18. The Last Starship · 1,620 reviews · 75% positive · 2026
  19. Nucleares · 1,117 reviews · 84% 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.