EVERY GAME IN HERE IS A .wad file. all based on the doom engine. also includes the latest and final version of zdoom to run the games this can be played online by using the mod called "skulltag"

LIST OF ALL THE GAMES INSIDE:
Doom 1 *ultimate doom*
Doom 2 Hell on Earth
final doom tnt
final doom plutonia
heretic shadow of the serpent riders
hexen beyond heretic
hexen deathkings of the dark citadel
strife quest for the sigil
Action Doom 1 (action.wad)
action doom 2
alien vs preditor vs terminator (AvPvT2.wad)
Batman (batman.wad)
boomtown (boomtown.wad)
chex quest 1
Chex Quest 2 (chex2.wad)
chex quest 3
doom 2 xtreme (d2xtreme.wad)
doctor who (DALEKWAR.WAD)
star wars (DarkHour.wad)
DOOM3 *not really doom 3* (DOOM3.wad)
Doom3 ver7 (Doom3ver7.wad)
doom 3057 (doom3057.wad)
final fantasy doom (FFdoom2.wad)
a fistful of doom (FISTFUL.WAD)
garrulismo (GARRULO.WAD)
hacx (hacx.wad)
harmony
Hexenher (Hexenher.wad)
INSANITY (INSANITY.WAD)
INSANITY2 (INSANITY2.WAD)
legos (Ldsprts.wad)
lost in time (Ldsprts.wad)
Mariodm (Mariodm.WAD)
star trek (ncc1701.wad)
OSIRIS (OSIRIS.WAD)
PA FINAL (PAFINAL.WAD)
quake 2 weapons (Q2WEP.WAD)
quake doom (QKEDOOM.WAD)
quake doom (newer version?) (QUAKE2.WAD)
SILLYWAR (SILLYWAR.WAD)
SILLYWAR2 (SILLYWAR2.WAD)
SillyWow (SillyWow.WAD)
SIRENS (SIRENS.WAD)
SIRENSZD (SIRENSZD.WAD)
star doom wars *STARWARS* (STARDOOM.WAD)
strain and Strain (Fix) (strain.wad or StrainFix.wad)
mortal kombat subzero (SUB-ZERO.WAD)
simpsons (ulsimpdm.wad)
void (void.wad)
another doctor who (WHODM30.WAD)
zombies (ZOMBIE.WAD)