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indielist (beta)

The best space indie games, ranked by reviews

5 min read for players

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

indielist tracks 76 space indie games on Steam, holding 1,646,716 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 No Man's Sky with 310,268 reviews. Figures are tracked by indielist; sales numbers are estimates that each expand into their full formula.

The ranking

  1. No Man's Sky · 310,268 reviews · 85% positive · 2016
  2. RimWorld · 210,586 reviews · 98% positive · 2018
  3. Oxygen Not Included · 136,058 reviews · 97% positive · 2019
  4. Kerbal Space Program · 121,715 reviews · 96% positive · 2015
  5. Starbound · 120,658 reviews · 90% positive · 2016
  6. ASTRONEER · 119,232 reviews · 92% positive · 2019
  7. Outer Wilds · 87,474 reviews · 96% positive · 2020
  8. Dyson Sphere Program · 83,815 reviews · 97% positive · 2021
  9. FTL: Faster Than Light · 63,006 reviews · 95% positive · 2012
  10. Mouthwashing · 34,654 reviews · 95% positive · 2024
  11. Universe Sandbox · 28,097 reviews · 96% positive · 2015
  12. Kerbal Space Program 2 · 27,998 reviews · 26% positive · 2023
  13. Warhammer 40,000: Inquisitor - Martyr · 19,591 reviews · 76% positive · 2018
  14. Viscera Cleanup Detail · 18,103 reviews · 92% positive · 2015
  15. SpaceEngine · 16,134 reviews · 96% positive · 2019
  16. IXION · 15,423 reviews · 79% positive · 2022
  17. Breathedge · 14,845 reviews · 81% positive · 2021
  18. shapez 2 - Factory · 14,051 reviews · 97% positive · 2026
  19. Nova Drift · 13,052 reviews · 96% positive · 2024
  20. Planetary Annihilation: TITANS · 11,426 reviews · 84% positive · 2015

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.