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

indielist tracks 18 science indie games on Steam, holding 278,283 reviews at an average of 86% 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 116,084 reviews. Figures are tracked by indielist; sales numbers are modeled estimates that each expand into their full formula.

The ranking

  1. Kerbal Space Program · 116,084 reviews · 95% positive · 2015
  2. Kerbal Space Program 2 · 27,701 reviews · 26% positive · 2023
  3. Universe Sandbox · 27,041 reviews · 96% positive · 2015
  4. Automation - The Car Company Tycoon Game · 17,356 reviews · 94% positive · 2015
  5. SpaceEngine · 15,694 reviews · 96% positive · 2019
  6. Liftoff®: FPV Drone Racing · 13,330 reviews · 95% positive · 2018
  7. Ancestors: The Humankind Odyssey · 11,594 reviews · 79% positive · 2020
  8. Spaceflight Simulator · 9,144 reviews · 97% positive · 2022
  9. Aviassembly · 8,834 reviews · 97% positive · 2025
  10. Uncrashed : FPV Drone Simulator · 7,158 reviews · 95% positive · 2021
  11. Prehistoric Kingdom · 6,070 reviews · 90% positive · 2022
  12. Juno: New Origins · 3,447 reviews · 89% positive · 2023
  13. OUTBRK · 3,185 reviews · 82% positive · 2024
  14. TRYP FPV: Drone Racer Simulator · 3,097 reviews · 86% positive · 2022
  15. Moons of Madness · 2,912 reviews · 77% positive · 2019
  16. Flyout · 2,214 reviews · 83% positive · 2023
  17. The Sapling · 1,899 reviews · 90% positive · 2019
  18. The Last Starship · 1,523 reviews · 75% positive · 2026

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.