You can verify RTX Remix is working by checking for the splash message at the top of the screen when the game starts. Once RTX Remix files are in place, you can start the game normally. For example, Source Engine games will search in the bin directory next to the main game executable for d3d9.dll instead. Note: Some games will search for d3d9.dll in a different directory other than the directory of the main game executable. trex/ folder sitting right next to the main game executable. To prep the game, simply copy the contents of the remix-0.1.0 directory into the game’s directory, right next to the main executable of the game.