Choose Kerbal Space Program
Choose Kerbal Space Program if it carries the stronger Steam consensus at 95.9% positive across 77,731 reviews.
Kerbal Space Program vs PixPhys
Kerbal Space Program and PixPhys 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 6 years older than PixPhys (2021). Kerbal Space Program scores higher on Steam reviews (95.9% positive) than PixPhys (64.7% positive). 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 PixPhys
Choose PixPhys if you want an Early Access experience. On Steam, it's currently about 60% cheaper on the Steam Store. PixPhys launched in 2021.
Both Kerbal Space Program and PixPhys sit in Indie and 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 |  PixPhys | |
|---|---|---|
| Released | 2015 | 2021 |
| Genres | Indie, Simulation | Indie, Simulation, Early Access |
| Platforms | Windows, macOS, Linux | Windows, Linux |
| Steam Deck | Deck Playable | Unrated |
| Price | 9.99 USD | 3.99 USD |
| Steam reviews | 95.9% positive (77,731 reviews) | 64.7% positive (119 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Squad | Red Starship |
Side by side
- Both share Indie, Simulation on Steam.
- Kerbal Space Program (2015) is 6 years older than PixPhys (2021).
- Kerbal Space Program scores higher on Steam reviews (95.9% positive) than PixPhys (64.7% positive).
- PixPhys is currently ~60% cheaper on Steam than Kerbal Space Program (3.99 USD vs. 9.99 USD).
- Kerbal Space Program is Deck Playable on Steam Deck; PixPhys has no Deck rating yet.
Kerbal Space Program vs PixPhys — FAQ
- Which is better, Kerbal Space Program or PixPhys?
- On Steam reviews Kerbal Space Program scores higher (95.9% positive) than PixPhys (64.7% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Kerbal Space Program is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play Kerbal Space Program or PixPhys first?
- If you want chronology, Kerbal Space Program (2015) came out before PixPhys (2021). 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 PixPhys 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.
- Does Kerbal Space Program run on Steam Deck?
- Yes — Kerbal Space Program is rated Deck Playable by Valve. PixPhys doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.