Black Mesa: How To Enable The Classic Source UI

Crowbar Collective added a new UI to Black Mesa in 2020 when they released the definitive edition. Don’t like it? I will show you how to simply re-enable it.


New vs Old UI
The old UI was almost the same as in other source games like Half-Life 2 and the episodes, but just darker and more settings.



How To Enable The Classic Source UI
To start, go to black mesa on your library and right click. Press properties.

Stay in General. In Launch Options, type in -oldgameui

After that, press enter. When you launch Black Mesa you will have the classic Source UI.

How to Disable The Classic Source UI
Remove -oldgameui from Launch Options.

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