What Lurks Beneath Base12?

What Lurks Beneath Base12? is a three-level PWAD for Doom, released in August 1994 by Scott Tingley and Wesley Leong.

Levels

 * E2M1 by Scott Tingley
 * E2M2 by Wesley Leong
 * E2M3 by Wesley Leong

Note that E2M3 often crashes when played in a source port - this can be fixed by re-building the nodes and re-saving the map.