We're here to guide you through the quickest ways to start playing multiplayer Doom. You'll find several programs listed below, with instructions on how to get them working. We've also provided links to 147 modem manufacturers, 69 verified modem initialization strings and 79 technical notes. Buckle up! Multiplay starts here...

KeywordsLAN: Local Area Network. Computers that are link together with the use of a network card. Usually these are found in offices. They can link many computers together with the need of connecting to the internet.

TCP/IP stands for Transmission Control Protocol/Internet Protocol. TCP/IP is actually a collection of protocols, or rules, that govern the way data travels from one machine to another across networks. The Internet is based on TCP/IP.


 Doom / Doom IIThe original Doom and Doom II came with their own connection software. It was possible to play two people over a modem or a null modem and up to four on a LAN. Just run the Sersetup program for play over a modem\null modem cable or Ipxsetup if you are playing over a network. You must already have someone to play against or with you cannot just connect to the web and play. There used to be a server in the United Kingdom hosted by Wireplay for the regular Doom2 but you had to download the software first and dial a special number.

To set up simply Double click on setup. You will then get a screen with the options.
Ipx-Compatible Network
Modem
Serial Cable.


 IPX-Compatible NetworkEnter the number of players 2 is the minimum and 4 is the max. Enter skill level as you would for any single player game. Enter the type of game. This will be either Co-operative or Deathmatch Finally enter the network socket that your computer uses. Now if you want to start from map01 just press F10. If you want to play a specific map then press F1 and choose the map of your choice.


 Modem & Serial CableEnter the number of players 2 is the maximum Enter skill level as you would for any single player game Enter the com port that your modem is on. Either 1, 2, 3 or four. If you are unsure which one your modem is on then click on Start > Settings > Control Panel : Then click on Modems > Properties. You should now be able to see which com port your modem is on. If you are the person calling then type the phone number into the the little black box. Select CALL. Then type in the number you wish to call and hit enter. Press F10 and your off.

If you are the person waiting to be called then select wait for call. Hit enter and wait for the other person to ring you. If you wish to play a specific map then press F1 and choose the map of your choice instead of F10.


 csDoomBy far the easiest way is to use csDoom. This is a client/server port that works in a similar way to Quake, Quake II and Quake III. Follow the instructions below.

The easy way:

Simply run the csDoom Launcher in your Doom(2) directory (csdLauncher.exe). This program connects to the master server and retrieves a list of all the running game servers. To play, simply select one, put in any extra parameters in the Additional Settings box, and hit the Launch button.

About custom wads: To play on servers running custom wad files, you first must specify which directories that csDoom will look in to find them. To do this, go to the "Tools" menu and choose "Settings..." You will see a box pop up that will allow you to type in and add the directories where your custom wad files exist.

If this isn't working for you, or you have the Linux version, see below.

The hard way:

To join a game manually, run doomcl.exe, go to the console, and type "connect ". Or, you can run doomcl.exe like so:
doomcl.exe -connect
Be sure to replace with the actual IP number or host name you are connecting to. If the server is running on a port other than 10666 (default), type "connect " in the console or run doomcl.exe like so:
doomcl.exe -connect
If, for some reason, that the default port the client uses (which is 10667) is in use on your machine, you must start the client like this:
doomcl.exe -connect -port
This tells the server that the client is using a port other than the default 10667, and that the server should send packets to the specified port.

To disconnect from the server, just type "disconnect" in the console. To reconnect to the server you were just connected to (or if you get booted off), type "reconnect" in the console.

#NOTE#: About teamplay: Before you can play on a server that has teamplay on, you must have your team (red or blue) specified BEFORE you connect. But the first time you connect to a teamplay server, you will likely not have your team specified, so, you will be kicked off. Just specify your teamname with "team ", type "reconnect", and you're ready for playing on that and any other teamplay server (your team is stored in zdoom.cfg)

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