Free multiplayer online game software for linux

Sloth Online RPG is aJava Online RPG with Real-Time Action and rich 2D graphics.

Sloth Online RPG is a work in progress that will provide a fully graphical online role playing game engine. SlothORPG is coded in Java and is currently in a near playable state featuring several classes with over a thousand lines of code.

My main intentions with this project are to provide a free, fully functional, ever expanding Role Playing Engine (both client and server side) for the end user who would be playing the game. Developers would also be able to use the project as a resource on certain aspects of Java Game Programming.

Server side the project implements the NIO Networking library to create a smoother, stronger tcp/ip core. I found UDP and TCP w/ the old IO library to be unreliable and sluggish respectively. The way in which the server is structured has proven to be strong thus far.

The client side of the code features the Graphics2D Java library to provide near perfect animation without requiring a rendering device such as OpenGL or DirectX.

To summarize my entire intent for this project I basically wanted to provide an Online RPG that is functional on almost any OS that has Java installed and can run just as smooth on low end machines while still being able to feature rich 2-D graphics. The source code is clean and neat as well as commented and organized.

It is easy to read and understand for someone who has some knowledge of Java. As I write this, the project is coming along nicely and some pre-alpha local network testing has proven this. I plan to continue with this project and in the future include database integration and more of a developer-side interface.

A quick rundown of what this project includes so far: Character Creation, Smooth character animation, and fully supported tcp/ip gameplay. Chatting is also implemented.

This is an adapted, improved version of the popular javacave game, written in QtRuby.

Installation:

download
chmod +x snake(gl).rb
run it.

The Cog Engine Project project consists of an online game authoring system.
The Cog Engine Project is a software suite aimed at simplifying the creation of video games. No prior programming experience is necessary.
The projects goal is to make building a video game easy enough for a motivated child to understand, while remaining as flexible and powerful as possible for the advanced user.
This development release includes new compass features that show a player which direction theyve come from, and which directions lead to rooms theyve already visited. Objects can also be manipulated directly through their Close Up images.
Enhancements:
- The compass can display a different graphic to display if a player has already visited the room a direction leads to
- The compass can display a different graphic to indicate the last direction a player traveled from
- Objects can be manipulated directly through their Close Up Images