Okay, so when I try to start Garry’s Mod, is says “Preparing to launch…”, the window closes, and then nothing happens (no errors). All my other steam games (including TF2, which Garry’s Mod uses for it’s engine) work perfectly fine and open.
I have tried removing the cache, gamemodes, lua, and addons folders which did not help,
I tried stopping steam, removing clientregistry.blob, and starting it again, I tried adding -dxlevel 8 and -dxlevel 81 into launch options,
I tried all the basic troubleshooting in this steam page, and I tried restarting my computer.
It is registering me to be in-game for about 2 seconds (if I look at steam friends it says I’m in-game but only for, like I said, two seconds)
This all started after the update a day or two ago. (not sure exactly when because I have not been on for the past two days)
I do not have a pirated game.