Superseded, obsolete, or reference-only projects retained for their source, research, or preservation value. These resources are not current recommendations; return to the main list for resources that remain useful for their intended purpose.
- Concealed the Conclusion: Original Source - The original Danmakufu source release for the influential fangame Concealed the Conclusion.
- EoSDecomp - An earlier byte-accurate decompilation effort for Embodiment of Scarlet Devil.
- Fantasy Crescendo - Source code for a 2.5D Touhou platform fighting fangame built with Unity.
- Touhou Music Database - An older reverse-search SQLite dataset for Touhou arrangements, retained for its normalized schema and research value; its maintainer warns that the data may be out of date.
- twinject - An automated player and hooking framework for technical research into Touhou bullet hell games.