Online Co-Op is available via Local LAN or via one of many third party utilities to play over the internet.
The sequel to the world-wide phenomenon feature 32 new levels, new enemies, new weapons and a few technical advancements.
This page contains co-op info for DOOM II on the PC DOS [Classics]. All information about DOOM II was correct at the time of posting. Information is subject to change. If you see any errors please email us.