Osiris

Osiris is a Doom II episode replacement mod of eight levels, created by Marshal Bostwick and Glen Payne in 1996.

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.

Dehacked file
The wad comes with a Dehacked file (osiris.deh) which makes cosmetic changes to several of the weapons, with the rocket launcher's (now a flame-thrower) maximum ammo capacity now equal to 100 (200 with the backpack) and a few changes to the monsters, namely:


 * The shotgun guy is now a blue marine with 40 hit points.
 * The imp now represents Anubis and fires cacodemon fireballs. It has 50 hit points.
 * The demon and spectre wield scythes.
 * The lost soul is now a bat which has 70 hit points.
 * The arachnotron now has 750 hit points and is a flying monster.
 * Several decorative items, as well as the spiderdemon, are now sound effects.

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