Choose Kerbal Space Program
Choose Kerbal Space Program if you want an Indie experience. 77,731 Steam reviews back the pick.
Kerbal Space Program vs Planet Genesis 2
Kerbal Space Program and Planet Genesis 2 both land in 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 are Simulation games on Steam. Kerbal Space Program (2015) is 11 years older than Planet Genesis 2 (2026). Planet Genesis 2 is free; Kerbal Space Program is paid (39.99 USD). 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 Planet Genesis 2
Choose Planet Genesis 2 if you want a Free To Play and Casual experience. On Steam, it's free to play, so the barrier to trying it is zero. Planet Genesis 2 launched in 2026.
Both Kerbal Space Program and Planet Genesis 2 sit in Simulation on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 Kerbal Space Program |  Planet Genesis 2 | |
|---|---|---|
| Released | 2015 | 2026 |
| Genres | Indie, Simulation | Simulation, Free To Play, Casual |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 39.99 USD | Free to play |
| Steam reviews | 95.9% positive (77,731 reviews) | 2 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Squad | Raptor Claw |
Side by side
- Both are Simulation games on Steam.
- Kerbal Space Program (2015) is 11 years older than Planet Genesis 2 (2026).
- Planet Genesis 2 is free; Kerbal Space Program is paid (39.99 USD).
- Kerbal Space Program is Deck Playable on Steam Deck; Planet Genesis 2 has no Deck rating yet.
Kerbal Space Program vs Planet Genesis 2 — FAQ
- Should I play Kerbal Space Program or Planet Genesis 2 first?
- If you want chronology, Kerbal Space Program (2015) came out before Planet Genesis 2 (2026). 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 Planet Genesis 2 similar?
- They overlap on 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.
- Is Planet Genesis 2 free?
- Yes — Planet Genesis 2 is a free-to-play Steam title. Kerbal Space Program is paid (39.99 USD).
- Does Kerbal Space Program run on Steam Deck?
- Yes — Kerbal Space Program is rated Deck Playable by Valve. Planet Genesis 2 doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.