CleverRaven/Cataclysm-DDA — pull request #6698 by CIB (2014-03-16 17:18:27+00:00)
Title: Lua wrappers for monster groups.

This enables you to:
- Spawn new monster groups of custom type on the overmap.
- Iterate over existing monster groups and adjust them.

Check out the example .lua file to test this. Can simply copy it as "main.lua" into a mod of your choice.