Choose X3: Reunion
Choose X3: Reunion if it's currently about 84% cheaper on the Steam Store. X3: Reunion launched in 2006.
X3: Reunion vs X4: Foundations
X3: Reunion and X4: Foundations both land in Strategy 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 Strategy games on Steam. X3: Reunion (2006) is 12 years older than X4: Foundations (2018). X4: Foundations scores higher on Steam reviews (78.6% positive) than X3: Reunion (65.1% 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 X4: Foundations
Choose X4: Foundations if you want an Action and Simulation game with Adjustable Text Size, Color Alternatives, and Camera Comfort. On Steam, it carries the stronger Steam consensus at 78.6% positive across 13,038 reviews.
Both X3: Reunion and X4: Foundations sit in Strategy 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
 X3: Reunion |  X4: Foundations | |
|---|---|---|
| Released | 2006 | 2018 |
| Genres | Strategy | Action, Strategy, Simulation |
| Platforms | Windows, macOS, Linux | Windows, Linux |
| Steam Deck | Deck Unsupported | Deck Verified |
| Price | 1.99 USD | 12.49 USD |
| Steam reviews | 65.1% positive (295 reviews) | 78.6% positive (13,038 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Egosoft | Egosoft |
Side by side
- Both are Strategy games on Steam.
- X3: Reunion (2006) is 12 years older than X4: Foundations (2018).
- X4: Foundations scores higher on Steam reviews (78.6% positive) than X3: Reunion (65.1% positive).
- X3: Reunion is currently ~84% cheaper on Steam than X4: Foundations (1.99 USD vs. 12.49 USD).
- Steam Deck: X3: Reunion is Deck Unsupported, X4: Foundations is Deck Verified.
X3: Reunion vs X4: Foundations — FAQ
- Which is better, X3: Reunion or X4: Foundations?
- On Steam reviews X4: Foundations scores higher (78.6% positive) than X3: Reunion (65.1% positive). Both have enough reviews to trust the signal, so for players using reviews alone, X4: Foundations is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play X3: Reunion or X4: Foundations first?
- If you want chronology, X3: Reunion (2006) came out before X4: Foundations (2018). 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 X3: Reunion and X4: Foundations similar?
- They overlap on Strategy 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.