Cube in an opensource shooter designed to run on systems with lower resources availabe. Cube uses opensource content, as well as a few quake II models, in its game portion. Cube supports both single and multiplayer. Maps can be of both large size and hold a large number of computer AI's. Cube has a large multiplayer community, and maps can be edited in real time cooperatively. There are several single and multiplayer mapping projects underway, as well as model packs and total conversions.
The possibilities for modding is practically endless, I spend more time on Cube and AssaultCube than I do on GMod! This is so damn addicting, I like the fact you stuck to poor graphics, high graphics are overrated, Too many people love graphics more than gameplay, only a few companies I can name go for gameplay, the guys who made Cube are one of them.