Weapon

Doom/Ultimate Doom

 * Fists - No ammo? No problem!  Use your unlimited physical strength! Especially good with the berserk pack.
 * Chainsaw - Who needs to punch when you can saw demons apart with a spinning blade of fury?
 * Pistol - Your default long-range weapon. Try to find a replacement as soon as possible.
 * Shotgun - Good for general close range combat. Has a slightly longer than usual reload time.
 * Chaingun - Very good for ripping through hordes of demons. However uses up a lot of ammo, so use wisely.
 * Rocket launcher - Shoots explosive rockets. Great for gibbing large, close groups of demons, but also can hurt you if you are not careful.
 * Plasma gun - Shoots pulses of blue-hot plasma at high speed which can take down crowds of incoming enemies easily, if you know what you're doing.
 * BFG 9000 - The big gun. Get it and see for yourself!

Doom II/Final Doom
Doom II and Final Doom contain all of Doom's weapons, with the addition of:


 * Super shotgun - A double-barrelled, sawed-off shotgun which takes a bit to reload, but at close-range is even more deadly than the regular shotgun.

Skulltag
Skulltag supports a few extra weapons that can be added to Skulltag maps:


 * Minigun - Even faster than the chaingun, but has a cooldown pause when the trigger is released, and no first-shot accuracy.
 * Grenade launcher - Fires bouncy, explosive grenades.
 * Railgun - Fires hitscan rails that pierce lines of enemies.
 * BFG 10,000 - Unleashes rapid-fire, hitscan bolts with splash damage for massive destruction.

Heretic

 * Dragon Claw
 * Elven Wand
 * Ethereal Crossbow
 * Firemace
 * Gauntlets of the Necromancer
 * Hellstaff
 * Phoenix Rod
 * Staff

Hexen
Fighter Cleric Mage
 * Spiked Gauntlets
 * Timon's Axe
 * Hammer of Retribution
 * Quietus
 * Mace of Contrition
 * Serpent Staff
 * Firestorm
 * Wraithverge
 * Sapphire Wand
 * Frost Shards
 * Arc Of Death
 * Bloodscourge

Strife

 * Punch Dagger
 * Crossbow
 * Assault Gun
 * Mini-Missile Launcher
 * Flamethrower
 * Grenade Launcher
 * Mauler
 * The Sigil of the One God