Ya3dag is based on the quake 2 modification Quake2maX and the lazarus game dll. Want to create your own levels? Well, you've come to the right place. Ya3dag has a built-in "what you see is what you get" level-editor and has been specifically designed for rapid level creation. Terrain, smart NPC's, weather, physic simulation, ...
A new feature of IqeBrowser V2.17 is the display/conversion of .kvx files. This is voxel sprite format used by the Build engine (Shadow Warrior/Blood). Also the zdoom engine supports this model format.
The SLAB6 (voxel viewer&editor) by Ken Silverman can create such files. See Advsys.net
The models shown are from the download BrutalDoom_Voxel_Patch_3-2-1. See Moddb.com