Free multiplayer software for linux

Call Of Duty 2 Linux Multiplayer Server Code is a COD2 linux server.

!! IMPORTANT !!

Call of Duty 2 Linux Server is NOT SUPPORTED by Activision Customer Support. Please do not call with any questions related to this free beta product. There are other channels to aid you listed at the bottom of this document.

Introduction

This document explains how to install the Call of Duty 2 Linux server version 1.0. Installation from scratch and upgrading an existing installation are both covered.

Usage is very similar to Call of Duty and United Offensive... many of the console commands, command lines, and cvars are identical, so if you are comfortable maintaining dedicated servers for those games, you will find this process familiar.

MOD USERS: PLEASE READ...

It is recommended that any user modifications that have been installed to the Call of Duty 2 directory be removed before installing this package. These modifications are not supported by Activision and may not be compatible with some of the new features that are included. When installing or upgrading a server, if problems or unexpected behavior arise, your first step in troubleshooting should be to do a clean install with the original data files.

IF YOU HAVE A PROBLEM WITH "LIBSTDC++.SO.5" ...

(This is a frequent-enough problem to merit discussion in the introduction.)

If you are reading this, its probably because you tried to start your Linux server and saw this message:

./cod2_lnxded: error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory

COD2 is a C++ program built with gcc 3.3.4, which means it needs a system library specific to gcc 3.3. Older Linux systems wont have this installed, and were starting to see newer Linux distributions that dont have this either, since they are supplying an incompatible gcc 3.4 version. The good news is that you can drop the needed library into your system without breaking anything else.

Here is the library you need, if your Linux distribution doesnt supply it:

http://icculus.org/updates/cod/gcc3-libs.tar.bz2

You want to unpack that somewhere that the dynamic linker will see it (if you are sure it wont overwrite any files, you can even use /lib).

The brave can put it in the same directory as the game and run the server like this:

LD_LIBRARY_PATH=$LD_LIBRARY_PATH:. ./cod2_lnxded

Now the server will start.

Upgrading from 1.0 to Linux 1.0a.

Just stop the game server, replace cod2_lnxded on your server with the version included in this package, and restart the game server. 1.0a is just a minor hotfix and requires no other code changes.

As the hotfix is Linux-specific there is no Windows version of 1.0a.

Installation From Scratch

- Get the retail Call of Duty 2 disc(s) (there may be multiple discs depending on what edition of the game you have obtained, or perhaps a single DVD-ROM disc).
- Copy the contents of disc ones "Setup/Data" directory to wherever you want to install the Call of Duty 2 Linux server. There should be a "localization.txt" file in the root of this directory, and a "Main" Subdirectory. Each additional disc should be opened and the contents of each "Data" folder should be copied over to the existing Main folder. When you have copied everything, the final installation size is around 3.5 gigabytes.
- Alternately, you may install on Windows and copy the installed game to your Linux system, but many will opt to skip this step since the data files are uncompressed and easily accessible on the discs. Final installation size is around 3.5 gigabytes.
- Unpack this archive in the root of the newly-copied tree, so "cod2_lnxded" is in the same directory as "localization.txt". Unlike the original Call of Duty, there are not seperate .so files like "game.mp.i386.so", so dont be concerned when you dont see them.
- Now, run the server:
cd /where/i/copied/callofduty2
./cod2_lnxded

- When you see "--- Common Initialization Complete ---", the game server has started, but you need to start a map before the server will accept connections. At this point, type:

map mp_leningrad

("mp_leningrad" being a given maps name).

- Now you should see your server in the in-game browser. You will now want to customize your server, but that is beyond the scope of this document.

NetPanzer project is an online multiplayer tactical warfare game designed for FAST ACTION combat. Gameplay concentrates on the core -- no resource management is needed.
The game is based on quick tactical action and unit management in real-time. Battles progress quickly and constantly as destroyed players respawn with a set of new units. Players can join or leave multiplayer games at any time.
Official netPanzer development got basically halted in 1999, since 2002 netPanzer is available under the GNU GPL and thus Free Software and a GNU/Linux port of netPanzer is ready.
Main features:
- netPanzer is a game designed to fit into the real-time tactical game genre. Its art is based on realistic environments and vehicles. Battle will heat up as players challenge for territory, and without the need for resource management battles will emerge swiftly.
Network:
- Features a scalable client/server network architecture.
- Support from 1 to 100 players over the Internet or on LAN systems depending on the network connection type and game configuration (single/multi dedicated server vs. server-player, max number of units per player and so forth).
- Players will be able to join or leave multiplayer games at any time.
Gameplay:
- Real-time action without the need to gather resources.
- Manually aim your units fire while they are moving to another location.
- Maps range in size from 10x13 to 64x85 640x480 size screens.
- Three modes of multiplayer combat; objective capture, frag limit, and time limit.
- Change screen resolutions on the fly to 640x480, 800x600 or 1024x768
- A customizable interface layout.
- MiniMap for quick viewing of the world.
Special Effects:
- Particle system explosions, muzzle shots, missile trails, etc.
- Dynamic, real-time lighting.
- Translucent particles and shadows.
Enhancements:
- Change default masterserver to netpanzer.dyndns.org
- Fix remote DOS when sending invalid frame number
- Fix gcc 4.1 compilation
- Make server handle clients more gracefully that drop during connect

JDuplicate project is a multiplayer word game suite supporting Scrabble and Duplicate.

It supports popular word games such as Duplicate and Scrabble.

JDuplicate Swing Client, commonly called JDSC, is the JDuplicate reference
client. It will allow you to connect to a JDuplicate server and play without
having to input complex commands as its main goal is usability.

Unlike JDCC, which was developped for debugging purposes, JDSC is developped
from the ground up with ease of use in mind. JDSC is fully graphical and
features user friendly characteristics such as drag&dropping tiles, full sound
support and a click and play interface for game selection.

Like the rest of the JDuplicate "official" package, running JDSC will require
that you install Java.

Panzers project is a simple 3D multiplayer tank game.
The player controls a WW2 tank. The player controls the tank in a fully 3D environment trying to blast other players.
Several different vehicles will be selectable, but currently there are two different panzers at your disposal.
Main features:
- multiplayer action through a server (still flaky at best though)
- full 3D environment with lakes, houses and woods
- panzers can be fully controlled, including turrets, and they have different characteristics
- some kind of physics approximation for shells
- loads of bugs
- maps can be created by just editing a grayscale png file
At present Panzers is more a technology demo than something youd want to spend too much time playing. Better playability will be added sooner or later. Help is appreciated, of course.

ClanBomber is a free (GPL) Bomberman-like multiplayer game that uses ClanLib, a free multi platform C++ game SDK. First "ClanBomber" was only a working title for a small game started in September 1998, that has only been started to learn how to use ClanLib.

But the ClanBomber project has grown into a real game. It is fully playable and features Computer controlled bombers, however, it is recommended to play ClanBomber with friends (3-8 players are really fun).

iMaze project is a multiplayer, realtime, 3D, labyrinth run and shoot game.
iMaze is a multi-player network action game for TCP/IP with 3D graphics under X11 in which players runs through a labyrinth, trying to shoot other players and computer-controlled ninjas without being shot by them.
It features a sophisticated, reliable network protocol which works even with SLIP connections over modems.
Its windows can be freely scaled to avoid speed drawbacks due to poor display performance.
Main features:
- sophisticated, reliable network protocol, works even with SLIP connections via modem
- windows can be freely scaled to avoid speed drawbacks due to poor display performance
- modular, portable source code
- scores
- extensive documentation (german)

OpenRTS is an open source realtime strategy game. OpenRTS game features isometric graphics, networked multiplayer and single-player scenarios. The game is being developed using Python and SDL.
Main features:
- Creating an exciting realtime strategy gameplay is the goal of the project.
- Isometric graphics, using an improvement called isometric mouse maps. See the Screenshots.
- Networked multiplayer using a client/server architecture.
- Single-player scenarios for skirmish games.
Enhancements:
- Network game support using the Twisted framework, new animations and selection of multiple units, support for psyco just-in-time compolation, improved path finding using Astar, and many bugfixes.
- New translations to Norwegian and German were included.

Oddspace project is a multiplayer 2D space shooter.

Its somewhat similar to Asteroids.

Getting Started

1. Install Java 1.4 or later

2. Download the zip and extract it to some directory

3. Since Oddspace is a multiplayer game you must first have a server to connect to. Start a server with the command "java -classpath . net.killingar.oddspace.Server" (or if you are on Windows, use server.bat). Select game mode first, then click "Start Server", now the server is running.

4. To connect to a server start the client with the command "java -classpath . net.killingar.oddspace.Client" (or if you are using windows, use the client.bat file)

5. Connect to the server by going to the "options" tab, then typing the servername in the "server" field (use localhost to use the one you just started), type your username in the "username" field and if you have a password type this also. Now click connect.