I see not command line output, so can only assume a recent driver update has caused this game to stop running.
Using mesa 13.0.3 on a radeon 6970 under kde neon.
Running the game from steam gives no error in the console, and does nothing. I had it working fine previously with an older version.
At first look, I thought "Black Mesa" was a joke but it's not. Funny name! :-)
According to https://steamcommunity.com/app/362890/discussions/0/312265327168384714/, the Linux version seems to have various issues. I will let you know when I can test myself.
Thanks for reporting.
"Black Mesa" is working here, both with mesa 13.0.4 and mesa-git. Tested on RX480.
ok i found a linux script to launch the game under linux in the folder.
This is the error log i get from the command line:
libGL error: unable to load driver: r600_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: r600
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 155 (GLX)
Minor opcode of failed request: 3 (X_GLXCreateContext)
Value in failed request: 0x0
Serial number of failed request: 94
Current serial number in output stream: 95
This is a game bug caused by old / incompatible lib files.
I had exact the same issue and solved it by adding this to the game launch options: