Here's a BIG list.

Randomizers are game modifications and utilities that randomly arranges original game data in a way that significantly increase their replayability. Their randomization are applied before or when starting a new game in order to effectively generate many different games to experience based off the originals. They are also designed to prevent new unwinnable states to the game, or at the very least make such issues extremely unlikely or have easily-applicable non-destructive workarounds.

We're also looking for more contributors, It's mostly as easy as reading peoples' submissions and editing a text file. Let me know if you want to help!