Load unzip and load Duke Boomem 2.5 WAD and any Doom or Freedoom IWAD into any limit removing sourceport such as DSDA, Odamex, Nugget, Woof. GZDoom, ZDoom and Zandronum also supported with better perks on Duke player gameplay, but monsters remain the same. This isn't a copy of Dn3Duke or Don Ramone.