Space Pilgrim Episode I: Alpha Centauri vs 四魂-X Shikon-X Astro Defense Fortress
Space Pilgrim Episode I: Alpha Centauri and 四魂-X Shikon-X Astro Defense Fortress 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 Pilgrim Episode I: Alpha Centauri (2015) is 9 years older than 四魂-X Shikon-X Astro Defense Fortress (2024). Space Pilgrim Episode I: Alpha Centauri is free; 四魂-X Shikon-X Astro Defense Fortress is paid (9.99 USD). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Side-by-side comparison
 Space Pilgrim Episode I: Alpha Centauri |  四魂-X Shikon-X Astro Defense Fortress | |
|---|---|---|
| Released | 2015 | 2024 |
| Genres | Indie, Adventure | Action, Indie, Adventure, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | Free to play | 9.99 USD |
| Steam reviews | 91.3% positive (715 reviews) | 9 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Pilgrim Adventures, GrabTheGames Studios | Kindermann Corp. |
Side by side
- Both share Indie, Adventure on Steam.
- Space Pilgrim Episode I: Alpha Centauri (2015) is 9 years older than 四魂-X Shikon-X Astro Defense Fortress (2024).
- Space Pilgrim Episode I: Alpha Centauri is free; 四魂-X Shikon-X Astro Defense Fortress is paid (9.99 USD).
- Space Pilgrim Episode I: Alpha Centauri is Deck Playable on Steam Deck; 四魂-X Shikon-X Astro Defense Fortress has no Deck rating yet.
Space Pilgrim Episode I: Alpha Centauri vs 四魂-X Shikon-X Astro Defense Fortress — FAQ
- Should I play Space Pilgrim Episode I: Alpha Centauri or 四魂-X Shikon-X Astro Defense Fortress first?
- If you want chronology, Space Pilgrim Episode I: Alpha Centauri (2015) came out before 四魂-X Shikon-X Astro Defense Fortress (2024). 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 Pilgrim Episode I: Alpha Centauri and 四魂-X Shikon-X Astro Defense Fortress 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.
- Is Space Pilgrim Episode I: Alpha Centauri free?
- Yes — Space Pilgrim Episode I: Alpha Centauri is a free-to-play Steam title. 四魂-X Shikon-X Astro Defense Fortress is paid (9.99 USD).
- Does Space Pilgrim Episode I: Alpha Centauri run on Steam Deck?
- Yes — Space Pilgrim Episode I: Alpha Centauri is rated Deck Playable by Valve. 四魂-X Shikon-X Astro Defense Fortress doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.