Documents
LinRadiant documentation
LinRadiant Build and Install Guide
LinRadiant Changelog (technical)
MinGW + Msys Install Guide (technical)
Online tutorials and manuals
Radiant Manual
Radiant Tutorials
Radiant Editor Commands
Q3MAP2 Shader Manual
Map Design Guide
Map Technical Details
Bot Optimization Guide
Understanding Vis and Hint Brushes
Temporary stuff
Structures and Enums in the Q3A Source Code