CLICK HERE FOR A LONGER VERSION WITH EXPLANATIONS

These tools and these tools only may be used in RTA (click the name for a download link):

XInputPlus to use a controller/gamepad with versions that don't have built in support Dinput for fixing mouse issues d3d9.dll to force the game into windowed mode

Useful external tools you can use during runs:

GTA MP3 Randomizer or GTA Radio External Windowers (dxwnd, d3dwindower, 3DAnalyze) SKeys or NohBoard for showing keyboard inputs on recordings 100 percent checklist Autosplitter for Livesplit (activate it in Livesplit's "Edit Splits" menu) Load remover for Livesplit Prio for keeping 1-core-affinity setting

Other useful tools you can use for practice and testing BUT NOT DURING RUNS:

On Mission Flag changer for 3D Era GTAs

While not a mod/fix, I'd like to put here that disabling your audio devices after launching the game in order to skip all voice lines/other effects is not allowed. This is because you're changing the hardware while the game is running (similar to other banned glitches as the "open disc tray" hardware trickery in PS1 speedruns).

Trying to launch the game with no audio devices enabled causes the game to not start and throw an error, meaning you can't normally setup the hardware in this way before the game launches (and even if it didn't screw playing the whole game with no sound :P).