Beating HERETIC is easy. Even on the hardest possible difficulty you can beat it with little to no issue compared to DOOM on Nightmare which is impossible to beat. Presenting to you BALLS OF STEEL. Not Duke Nukem's. Balls of Steel is a mod for Heretic which increases the difficulty of Heretic maps ton of times. So much so that each map contains minimum of 100 monsters to maximum of over 1000 monsters. You really need to use some skills here. Also some new monsters have been added and changed the cluster texts.