Choose Kerbal Space Program
Choose Kerbal Space Program if it's currently about 33% cheaper on the Steam Store. 77,731 Steam reviews back the pick.
Kerbal Space Program vs Spaceflight Simulator
Kerbal Space Program and Spaceflight Simulator both land in Indie, Simulation on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Indie, Simulation on Steam. Kerbal Space Program (2015) is 7 years older than Spaceflight Simulator (2022). Both sit near 96% positive on Steam (Kerbal Space Program: 77,731 reviews, Spaceflight Simulator: 5,173). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose Spaceflight Simulator
Choose Spaceflight Simulator if you want an Early Access experience. On Steam, it's the newer release (2022) and ships with the modern feature baseline. 5,173 Steam reviews back the pick.
Both Kerbal Space Program and Spaceflight Simulator sit in Indie and Simulation on Steam, so either pick lands in the same broad neighborhood. Steam reviews are nearly tied (95.9% vs 96.8% positive), so genre fit is the cleanest tiebreaker — scroll the table for the feature-by-feature view.
Side-by-side comparison
 Kerbal Space Program |  Spaceflight Simulator | |
|---|---|---|
| Released | 2015 | 2022 |
| Genres | Indie, Simulation | Indie, Simulation, Early Access |
| Platforms | Windows, macOS, Linux | Windows, macOS |
| Steam Deck | Deck Playable | Deck Playable |
| Price | 9.99 USD | 14.99 USD |
| Steam reviews | 95.9% positive (77,731 reviews) | 96.8% positive (5,173 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Squad | Team Curiosity ✦ |
Side by side
- Both share Indie, Simulation on Steam.
- Kerbal Space Program (2015) is 7 years older than Spaceflight Simulator (2022).
- Both sit near 96% positive on Steam (Kerbal Space Program: 77,731 reviews, Spaceflight Simulator: 5,173).
- Kerbal Space Program is currently ~33% cheaper on Steam than Spaceflight Simulator (9.99 USD vs. 14.99 USD).
- Both are Deck Playable.
Kerbal Space Program vs Spaceflight Simulator — FAQ
- Which is better, Kerbal Space Program or Spaceflight Simulator?
- On Steam reviews the two are nearly tied: Kerbal Space Program sits at 95.9% positive (77,731 reviews), Spaceflight Simulator at 96.8% (5,173). The choice usually comes down to genre fit and the platform features each one supports — see the comparison table above.
- Should I play Kerbal Space Program or Spaceflight Simulator first?
- If you want chronology, Kerbal Space Program (2015) came out before Spaceflight Simulator (2022). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Kerbal Space Program and Spaceflight Simulator similar?
- They overlap on Indie, Simulation on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.