Lore Engine Legacy is a modification for Friday Night Funkin', based on version 0.6.3 of Psych Engine.
Over that version of Psych Engine, its main additional features are:
- Haxe scripting support
- Custom and overrideable states
- Built-in support for shaders formatted for Shadertoy (some modifications required in some cases)
- Per-character noteskins
- Hitsounds
- Added Lua API functions
- Separate vocal tracks
- General aesthetic and usability improvements
Lore Engine Legacy is primarily undocumented. Documentation is in the works, but it will likely be a bit of time before it's in a state I'm comfortable with making available. If you can't gleam how something works from the source code, feel free to shoot me a DM on Bluesky,
See wiki page.





