| Item | Info | Description |
| CUSTOM_ENGINE_TEMPLATES | Template files for use in the Custom Engine | |
| CUSTOM_LAYOUTS | RTC Layout files for changing the UI | |
| EXPERIMENTS | Unfinished and unpolished add-ons | |
| FILESTUB_TEMPLATES | Template plugins for adding system targets in FileStub | |
| GAMES | ||
| LISTS | Limiter/Value Lists | |
| PLUGINS | Plugins for main RTC | |
| SAVESTATE_LISTS | Savestate List Packs (.ssk files) | |
| STOCKPILE_DEMOS | Demo Stockpiles for Learning (.sks files) | |
| VMDS | Virtual Memory Domains (.vmd files) |