Added "X4: Foundations" to the game compatibility list. (#81)

Author: gabriel-eladi

docs/wiki/Game-Compatibility.md

@@ -85,4 +85,5 @@ While GOG does not officially support GOG Galaxy features (achievements and lead
 |[Streets of Rage 4](https://www.gog.com/game/streets_of_rage_4)|Version v08g-r18163 (3/14/2023)|🟩 Yes|[`v0.2.0`](https://github.com/imLinguin/comet/releases/tag/v0.2.0)|🔲 No|🟩 Achievements 🟩 Leaderboard|Native Linux Version tested: v08g-18208|
 |[Tomb Raider GOTY](https://www.gog.com/game/tomb_raider_goty)|1.0|🔲 Not available|[version `0.1.2`](https://github.com/imLinguin/comet/releases/tag/v0.1.2)|🔲 No|🟩 Achievements 🔲 Leaderboard||
 |[Wolfenstein: The New Order](https://www.gog.com/game/wolfenstein_the_new_order)|1.0.0.2 - 06/02/2020|🔲 Not Available|[version `0.1.2`](https://github.com/imLinguin/comet/releases/tag/v0.1.2)|🔲 No|🟩 Achievements 🔲 Leaderboard|Switch to older version without hotfix for the achievements, however the game is prone to crash. Refer to [this issue](https://github.com/imLinguin/comet/issues/57).|
+|[X4: Foundations](https://www.gog.com/en/game/x4_foundations)|Version 8.00 Hotfix 3 - 10/16/2025|❌ Not Working|[`v0.2.0`](https://github.com/imLinguin/comet/releases/tag/v0.2.0)|🔲 No|🟩 Achievements 🔲 Leaderboard|_(tested on Heroic 2.18.1)_ The game has a working native Linux version, but achievements don't work with it (they work fine on the Windows version). If you're using Heroic, I recommend the Windows version, since it runs just as well if not slightly better, and you get Comet and Cloud Saves support with it (and also: the native Linux and Windows save files are incompatible with one another).|
 |[Xeno Crisis](https://www.gog.com/game/xeno_crisis)|1.0.4 (2/11/2020)|❌ Not Working|[commit `55e4025`](https://github.com/imLinguin/comet/commit/55e402538df3bff354bf2e1e9a54fa4e5e091122)|🔲 No|🟩 Achievements 🔲 Leaderboard|Achievement connection does work. The GOG Galaxy communications are not present in the Linux version, thus the macOS or Windows version needs to be used with Comet to work.|