Lunar Magic - Lunar Magic is a level editor created for Super Mario World.
Cheat Engine - Cheat Engine is an open source memory scanner/hex editor/debugger for Windows.
CompactGUI - CompactGUI is a standalone GUI to make using the Windows 10 compact.exe function easier to use.
WeMod - Personalize your gaming experience Thousands of free mods and trainers for your favorite single-player PC games — all in one place.
SMB Title Screen Editor - A title screen editor for Super Mario Bros. GUI is in Japanese. English readme created by AP.
GameGuardian - Play games your way! “GameGuardian” is a game hack/alteration tool.