Create a ZDaemon account, and you'll be able to keep track of your progress, gaining experience and levels simply by playing the game. Up to fifty players can join in a match, against monsters or each other. ZDaemon supports favorite modes like Cooperative, Survival, Deathmatch, Team Deathmatch, Capture the Flag, Double Domination and King of the Hill and can be played on thousands of maps designed for Doom, Doom II, and Heretic, including the originals.
Download and install ZDaemon, run the included launcher, and you'll find hundreds of servers from all over the world waiting for you to join in. Just double-click on one and let the fragging begin! It's free and easy, and you only need a copy of Doom or Doom II to play the original maps.
The ZDaemon community has many people who are eager to help. One of the best ways to get in touch with them is through the forums, where you can post questions, get answers, and join in on special community projects and events. We also have our own chat network, ZDIRC, which is great for finding someone to play with, getting in touch with your friends, or locating a member of the staff to get a problem solved quickly. ZDIRC access is built right into the game launcher, so all you need to do is sign up!
For those who prefer to talk instead of type, we also have a Teamspeak server. You'll need a Teamspeak 3 client, which is available at the "Downloads" area. Connection details are available in the main chat channel (#zdplayers) on ZDIRC.