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.
Have fun!