This is a guide from Reddit to run Halo Online on Linux using Wine. Still works for me but it will seem you need wine 4.18-staging version to get the game to run smoothly.

Halo Online finally works on Linux! No more blurry transparent textures, no more black textures. This is how you get Halo Online installed manually in Wine and how to set it up Manually in Lutris.

Install In Wine

1. Install WINE and PlayOnLinux
2. Once PlayOnLinux is installed, launch PlayOnLinux and go to Tools->Manage Wine Versions
3. In the Wine versions (x86) tab, download 4.18-staging
4. Create a new WINE prefix. This is recommended
5. Launch the terminal and enter this command env WINEPREFIX="/path/to/wine/prefix" regedit
6. In the Registry Editor, create the HKEY_CURRENT_USER\Software\Wine\Direct3D\csmt\DWORD value and set it to 0
7. In the Registry Editor, create the HKEY_CURRENT_USER\Software\Wine\Direct3D\multiply_special and set it to 1 or 2 (1 has the best performance for me)
8. Close

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Join the official Halo Online matrix room. Matrix is a federated alternative to Discord which respects users privacy.

Room Address

#haloonline:matrix.org

Join Link

https://matrix.to/#/#haloonline:matrix.org

The DewritoHub backup is an archive that DewritoHub provided in 2021 after DewritoHub got hacked and shutdown.

This backup contain many of the mods made for Halo Online.

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