Experimental Branch will not start up (Unknown Error)

Whenever I try to boot up Experimental Branch through Steam the game refuses to start up. When I try, it says Failed to start game: (unknown error) This happens almost instantly, with a barely noticeable gap between clicking play and it showing the error message.

If can go to rustclient.exe in the experimental folder and run it, it just shows the menu background. I have tried uninstalling, reinstalling, and verifying game cache. Rust legacy works perfectly fine. My computer runs on 32bit java, OS is Windows XP, and I have 2 gigs of ram (its quite a dated computer, but can run many other games fine).

I am quite puzzled and frustrated, as I want to try out the experimental version of rust. Any help will be much appreciated.

You’re not the only one.


Guy inside my thread posted his thread as well. Can we get a response to this?

Anyone know how to fix this?

Oops, somehow missed the other thread. Please see that one for support.

Nobody knows how to fix this? It still won’t launch.