A simple to use tool that you can use to generate random game sounds.
Basic usage involves hitting the randomize button (or one of the other buttons to your left if you need a specific standard sound), listen to the generated sound, then deciding if it sounds ok or not. If it does, then export it to .WAV and you're done, if not - just hit the button again and get something different.
All the parameters used to create each sound are manually tweakable to allow fine-tuning if you feel like getting your hands dirty. Space is a useful shortcut to play the current sound.