This package contains all of the old school DOS first-person shooters with new updated launchers specifically for Windows for better graphics and 3D Sound.
Hexen
Doom/2
Duke nukem 3D
Spear of destiny
AND MORE!! CLICK TO SEE MORE DETAILS!

Content:
Doom 1: The Ultimate Doom [eng](openGL-GZDoom engine)
Doom 2: Hell On Earth [eng] (openGL-GZDoom engine)
Doom 2: Plutonia Experiment [eng](openGL-GZDoom engine)
Doom 2: TNT - Evilution [eng](openGL-GZDoom engine)
DooM 64: the Absolution [eng] (openGL, Direct3D)
Heretic 1: Shadow of the Serpent Riders [eng] (openGL-GZDoom engine)
Heretic 2: v1.06 + BonusPack [eng,ger] (openGL, glide, software)
HeXen 1: Beyond Heretic [eng] (openGL-GZDoom engine)
HeXen 1: Deathkings of the Citadel [eng] (openGL-GZDoom engine)
Hexen 2: The beginning of the end v1.11 [eng,fra,ger].(openGL-UHQ engine, software)
Hexen 2: Portal of Praevus v1.12 [eng] (openGL-UHQ engine, software)
Strife : v1.2 (RPG with speech output) [eng] (openGL-GZDoom engine)

Skulltag is one of the multiplayer-centric Doom ports for Windows that is based on ZDoom. In addition to client/server networking code, Skulltag includes bots for offline multiplayer games; new game modes such as Capture the Flag, Skulltag, Invasion, Duel, Survival, Teamgame, and others; as well as new weapons, monsters, items, powerups, artifacts and modifiers (such as Instagib). Skulltag supports Heretic and Hexen, and the package also includes a server browser to join games in progress.

This required an Iwad, like doom 2, which I've convienently included in this package.
To play offline, just start skulltag.exe. To play online, start IDESE and choose a server when it loads
oh and it also supports mods. If you try to play on a server that uses mods, IDESE will automaticly search for them =D