Choose Space Adventure - Escape from Siphilus 1b
Choose Space Adventure - Escape from Siphilus 1b if you want a Casual experience. Space Adventure - Escape from Siphilus 1b launched in 2022.
Space Adventure - Escape from Siphilus 1b vs Welcome To Mars 9
Space Adventure - Escape from Siphilus 1b and Welcome To Mars 9 both land in Indie, Adventure 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, Adventure on Steam. Space Adventure - Escape from Siphilus 1b (2022) is 4 years older than Welcome To Mars 9 (2026). Welcome To Mars 9 is currently ~29% cheaper on Steam than Space Adventure - Escape from Siphilus 1b (4.24 USD vs. 5.99 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 Welcome To Mars 9
Choose Welcome To Mars 9 if you want the Gamepad Recommended, Custom Volume Controls, and Playable without Timed Input side of the pairing. On Steam, it's currently about 29% cheaper on the Steam Store. Welcome To Mars 9 launched in 2026.
Both Space Adventure - Escape from Siphilus 1b and Welcome To Mars 9 sit in Indie and Adventure 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
 Space Adventure - Escape from Siphilus 1b |  Welcome To Mars 9 | |
|---|---|---|
| Released | 2022 | 2026 |
| Genres | Indie, Adventure, Casual | Indie, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 5.99 USD | 4.24 USD |
| Steam reviews | 1 reviews | 72.7% positive (11 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | 3Dvisual | Sonomio Games |
Side by side
- Both share Indie, Adventure on Steam.
- Space Adventure - Escape from Siphilus 1b (2022) is 4 years older than Welcome To Mars 9 (2026).
- Welcome To Mars 9 is currently ~29% cheaper on Steam than Space Adventure - Escape from Siphilus 1b (4.24 USD vs. 5.99 USD).
Space Adventure - Escape from Siphilus 1b vs Welcome To Mars 9 — FAQ
- Should I play Space Adventure - Escape from Siphilus 1b or Welcome To Mars 9 first?
- If you want chronology, Space Adventure - Escape from Siphilus 1b (2022) came out before Welcome To Mars 9 (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 Space Adventure - Escape from Siphilus 1b and Welcome To Mars 9 similar?
- They overlap on Indie, Adventure 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.