Tools - mstfacmly/alAkhira GitHub Wiki
Gamygdala an "Emotion Engine for Games"
BMax Tools 3DS Max tools for Blender
MapBox Tool to create custom vector maps. Could be interesting.
Import SRTM Blender plugin to import digital elevation model data, as found on the USGS EarthExplorer page.
Dark Blender Optimized for sculpting and game asset creation.
GameTechDev -- Collection of tools to help in game development