Doom 2 Extreme Gold

Doom 2 Extreme Gold is a 32-level total conversion for Doom II released on August 12, 1997 by Chuck Lai.

It was the sequel to Doom II X-Treme, which was released the previous year.

Custom weapons

 * Fists
 * Deathblade
 * Pistols
 * Shotgun
 * Auto shotgun
 * Highspeed chainguns
 * Electro-magnetic railgun
 * Explosive Tip Rifle
 * Technoblade

Custom monsters

 * Soldier - this replaces the zombieman. It has 75 hit points.
 * Chaingun Sargent - this replaces the heavy weapon dude. It has 1250 hit points.
 * IAL - this replaces the imp. It has 1500 hit points.
 * Mystic Orb - this replaces the lost soul. It has 400 hit points.
 * The spectre has 1500 points, and can walk through walls, conversely the player can walk through them as well.
 * Black Guard - this replaces the revenant. It has 3500 hit points.
 * Technomage - this replaces the cacodemon. It has 2750 hit points.
 * Summoner - this replaces the pain elemental. It has 4000 hit points.
 * Hell Lord - this replaces the baron of Hell. It has 5500 hit points.
 * Comtar - The final boss replacement, who is seen on the TITLEPIC. In addition to spawning enemies, he also throws a volley of exploding fireballs. He has 20 million hit points, which makes defeating him near impossible without cheating in a source port.
 * Other monsters have their hit point values changed.

Other changes

 * The ammo limits for bullets, shotgun shells, EM-Railgun Ammo (replacing rockets), and mana (replacing energy cells have been changed to 475, 300, 350, and 200 respectively.
 * The Technoblade only uses 2 mana per shot.
 * The megasphere is now called a darksphere, and gives the player 666% health and 666% armor.
 * The armor and megaarmor set the player's armor to 200% and 400% respectively. The latter is now called X-Armor.
 * Armor, health, keys, weapons, and ammo count toward the item percentage in the intermission screen.