Fans have often stepped in to fix broken or unfinished video games, improving the overall gaming experience.
Super Mario 64 was originally supposed to have a cooperative multiplayer mode featuring Luigi, but it was cut due to performance issues. However, modders have restored this functionality.
Vampire: The Masquerade - Bloodlines was released in a buggy state, but a fan-made patch fixed numerous bugs and added missing content.
Star Wars: Knights of the Old Republic II - The Sith Lords was rushed to release and had cut content. Community mods have restored this content, including fixing AI issues.
Daikatana, developed by John Romero, had numerous issues and was heavily criticized. While the official patches did little to fix the game, fan mods improved gameplay and stability.