2DTest takes influence from games like Minecraft and Terraria and combines concepts from both the games. It's intended to be user extended and easy to mod. (Runs on Android with AndroWish, HTML5 Multiplayer coming soon)
The latest version of 2Dtest: adds damage, multiplayer, flying, more blocks, better inventory, and better chat usage. Mac OSX: Users, open the shell script (.sh) file in the zip file to run. Windows users: Open the .bat file in the zip file to run. Linux: make sure Tcl(visit tcl.tk) is installed (via package manager) then follow same instructions as Mac OSX users.