If anyone has seen the Cube films, then you have probably thought about what it would be like to really be in a cube. I saw that one guy made a mod for HL2 that essentially duplicated the Hypercube, but with mixed results. You had to climb above a door and jump, then crouch to get through it. Also, once you activate a trap, there's no escaping it, as he set the doors to deactivate.
I think that I can do better. Firstly, I want to adapt the idea into a more competitive gametype. No weapons, just traps. Maybe some knives so that players can threaten each other. I want the players to be able to purposely activate the traps to kill their fellow cube-mates, but not just knife each other to death. Maybe points would be awarded for cleverly eliminating someone, and penalties given for just knifing them or something. A lot of this would be better discussed in the gametype mod section, whatever that's called.
The actual map itself should follow the formula from Cube and Cube Zero, in that there are many cubes in which time is finite, traps are actually scary, and deaths are bloody (somebody, quick, port that Gibalicious mutator lol). Razorwire grates result in an instagib, possibly with smaller gibs. The needles shot through the wall should impale the players, like the new machinegun does. While the cube should consist of many rooms and definitely have a drop at the edges like the original film, I still want to use the idea from Hypercube of gravity shifting and directions changing, portal objects allowing.
At the moment, I'm just going to focus on building the cube itself and making it a fun deathmatch map. Once that's done, I'll look into all the gameplay modifications and such. Screenshots soon...