KMQuake II 0.20

KMQuake2 began immediately after the release of the Quake2 source as a small engine mod to "Boom" Q2, or increase its limits for mappers, just as Boom increased Doom's map limits.

The limits on the number of unique models and sounds in a map at once were the first to be increased, followed by the limits on the total entities in a map and how many entities can be displayed on screen at once.  This was followed by support for longer draw distances and maps compiled with larger chop sizes, to better support large outdoor areas.