Right-click the file in your library, then select Properties. Paste this into the Launch Options:
Code:
PROTON_USE_WINED3D=1 %command%
This works for a raft of games.
This does assume that you have enabled Steam Play. Go to Steam/Settings. Open the Steam Play tab and click "Enable Steam Play for supported titles," AND "Enable Steam Play for all other titles." You'll have to exit and restart Steam, and, using that start option, a very large number of Windows games are playable.
DO check https://www.protondb.com to see if the game will run, or how the user got the game running, or if the game simply is borked and you should avoid the hassle of purchasing, then having to refund it.
I have the same game installed, and, with that start option, it runs perfectly.
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