Top 5 detours open source projects

A library for patching, replacing and decorating .NET and Mono methods during runtime

Detours lib that I use

Inject and detour DLLs and program functions both managed and unmanaged in other programs, written (almost) purely in C#. [Not maintained].

An increasingly generic and comprehensive MapleStory client editing framework. Written by Erik A (Minimum Delta). Intended to abstract away some of the MapleStory client editing learning curve.

Automated player and hooking framework for bullet hell games from the Touhou Project