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M.U.L.E. Online

Classic M.U.L.E. for modern computers · By puzzud

Trouble running in Windows

A topic by puzzud created Jun 04, 2023 Views: 358 Replies: 3
Viewing posts 1 to 3
Developer (6 edits)

Two people have reported that they cannot start the Windows version.

After troubleshooting, we were able to get it to run by launching it with the command:

mule-online.exe --video-driver GLES2

From what I can gather, this suggests a graphics driver issue and a problem running Godot's OpenGL ES 3.0 rendering engine. However, because I and many others cannot reproduce this problem, I cannot be for certain.

In the next release (> v1.8.1), I will package a Windows BAT file to assist with this fallback, as well as making various other changes to potentially address this issue.

People encountering this issue are encouraged to post a reply here with your Windows version, GPU information, and anything else you think is relevant. Thanks.

(1 edit)

Not sure if i'm having the same issue, on the url page when i click the red "download" button nothing happens? Im using win10 and have a nvidia geforce rtx 2060 super. Guess diving right in wont be happening tonight, damn. EDIT: you must download the itch console first to actually download the game, problem solved


> you must download the itch console first to actually download the game

Incorrect. Although, in my experience the desktop app helps, especially with updates.

I think you're having an issue downloading the game, separate from the problem this thread is addressing.


Starting v1.9.0, a BAT file is included in Windows versions which will perform the instructions above and start the game in a GLES2 fallback mode.

Hopefully, this should resolve any "blank screen but still hear music" issues anyone is having.