Osiris

Osiris is a Doom II episode replacement mod of eight levels, created by Marshal Bostwick and Glen Payne in 1996. The original music was created by Jeremy Doyle.

The first three maps were previously released as I, Anubis in 1995.

It was included in Doomworld's Top 25 Missed Cacowards feature in 2018.

Custom content
The wad comes with a DeHackEd file (osiris.deh) which makes cosmetic changes to several of the weapons, with the maximum ammo capacity of the rocket launcher&mdash;now a flame-thrower&mdash;equaling 100 (200 with the backpack), as well as new cheat codes. It also applies changes to the monsters, namely:


 * The shotgun guy is now a blue marine with a headlamp with 40 hit points.
 * The imp has Anubis' head and fires cacodemon projectiles. It has 50 hit points.
 * The demon's sprites have been replaced by a shotgun guy with a reaper's head and scythe. Same goes for spectres.
 * The lost soul is now a bat that has 70 hit points.
 * The arachnotron has been changed to a pharaoh version of an arch-vile. It has 750 hit points and shoots mancubus projectiles.
 * Several decorative items, as well as the spiderdemon, are now sound effects.
 * Doomguy uses a knife instead of punching.
 * The pistol and shotgun use different sounds,
 * The chaingun is replaced by a machine gun.

Levels

 * MAP01: Stargate Systems
 * MAP02: The Crypts Defiled
 * MAP03: Cloud of Flame
 * MAP04: R U Experienced?
 * MAP05: OSIRIS Outpost
 * MAP06: Prince of the Dead
 * MAP07: Temple of Amon-Ra
 * MAP08: The Last Pharaoh