Hi, I recently discovered a post that finally allowed me to run the known repacks on Linux, so I decided to summarize everything and share it with you here on Lemmy; let me know if you would improve some steps to make the procedure even easier to follow.

Requirements

lutris, protonup-qt, wine-staging

Set Up Lutris

1. Open Lutris > Preferences > Global Options
2. Enable "Show advanced options"
3. "Disable Lutris Runtime" (off)
4. "Disable Desktop effects" (on)
5. "Disable Screen Saver" (on)
6. "Enable Feral GameMode" (on)
7. Save

Wine Versions Management

1. Open ProtonUp-Qt > choose Lutris > Add version
2. Choose and Install (ignore -LoL versions; Wine-GE suggested)
3. Restart Lutris

Install Windows Repacks

1. Open Lutris > + > Add locally installed game
2. Type the name of your game
3. Select Wine as Runner
4. Go to "Game options" tab
5. In "Wine prefix" create "/home/user/Games/your-game"
6. Go to "Runner options" tab
7. On "Wine version" select the version you prefer
8. Save
    8-1. (If FitGirl Repack)
    8-2. Click on the game your just added
    8-3. On the botton panel click the "Up" icon near the "Platform: Windows" text
    8-4. Run EXE inside Wine prefix
    8-5. Open the .bat file inside the FitGirl repack
    8-6. Wait then "Install"
    8-7. Wait the "Checking fg-01.bin" window and "All files OK"
    8-8. Close the window
9. Click on the game your just added
10. On the botton panel click the "Up" icon near the "Platform: Windows" text
11. Run EXE inside Wine prefix
12. Open the "setup.exe" file inside your repack
13. Wait; click "Install" if any installation prompt appears
14. Follow the DODI/FitGirl installer
    14-1. Use "C:\" as destination
    14-2. Don't create a desktop icon or a start menu entry
    14-3. Deselect every option that starts with "Update" for eg: "Update DirectX"
15. After the installation > right click on the game > Configure
16. Go to "Game Options" tab
17. In "Executable" put "/home/user/Games/your-game/drive_c/Your Game/your_game.exe"
18. Save
19. (optional) Right click on your game > Create desktop shortcut

Credits

Jack000999, SolarPunker

Based on (https://www.reddit.com/r/LinuxCrackSupport/comments/yqfirv/how_to_install_fitgirl_or_dodi_windows_repacks_in/)