Magnum Opus

Magnum Opus is a single-level PWAD for Doom II that came out in 1996. It was created by John Bye.

Secrets

 * 1) (sector 280)
 * 2) (sector 648)
 * 3) (sector 651)

Current records
The records for the map at the Doomed Speed Demos Archive are:

Things
This level contains the following numbers of things per skill level: