Skip to content
indielist (beta)

The best science indie games, ranked by reviews

5 min read for players

sciencegenre-guidedata-reportrecommendations

Data report Built from live indielist data on 2026-10-23. Rankings update as data changes.

indielist tracks 19 science indie games on Steam, holding 311,662 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 121,715 reviews. Figures are tracked by indielist; sales numbers are estimates that each expand into their full formula.

The ranking

  1. Kerbal Space Program · 121,715 reviews · 96% positive · 2015
  2. The Talos Principle · 29,353 reviews · 95% positive · 2014
  3. Universe Sandbox · 28,097 reviews · 96% positive · 2015
  4. Kerbal Space Program 2 · 27,998 reviews · 26% positive · 2023
  5. Automation - The Car Company Tycoon Game · 16,996 reviews · 94% positive · 2015
  6. SpaceEngine · 16,134 reviews · 96% positive · 2019
  7. Liftoff®: FPV Drone Racing · 13,831 reviews · 95% positive · 2018
  8. Ancestors: The Humankind Odyssey · 9,881 reviews · 79% positive · 2020
  9. Spaceflight Simulator · 9,573 reviews · 97% positive · 2022
  10. Uncrashed : FPV Drone Simulator · 8,054 reviews · 95% positive · 2021
  11. while True: learn() · 7,397 reviews · 91% positive · 2019
  12. Prehistoric Kingdom · 5,805 reviews · 90% positive · 2022
  13. TRYP FPV: Drone Racer Simulator · 3,188 reviews · 86% positive · 2022
  14. Juno: New Origins · 3,104 reviews · 89% positive · 2023
  15. CATO: Buttered Cat · 2,824 reviews · 98% positive · 2024
  16. SpaceChem · 2,635 reviews · 92% positive · 2011
  17. Flyout · 2,303 reviews · 84% positive · 2023
  18. The Last Starship · 1,635 reviews · 75% positive · 2026
  19. Nucleares · 1,139 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.