Emiscary said:
If the rumours about the Fallout mod are true it's not that hard to design.
That's the thing though. I can definitely see it working as a mod, I'm just not sure how to make it work as a commercially available game... which I thought was what you were getting at, though I could be mistaken.
The biggest problem I see hitting it is characters. The big thing that made Cube great was the character interaction, and the different ways they mentally and emotionally coped with the odd situation they were in. To make Cube into a video game, you'd need to do one of three things with regard to characters...
1. AI-controlled NPCs: This would allow NPCs to travel with you through the rooms of your choosing. They would need to have some sort of spoken dialogue, whether automatic idle speaking or actual initiated conversations, and they would need to be able to help (or hinder) you in some way. It would also be particularly cool if it was possible for all of them to be killed, either by room traps or by other characters. This is probably the best course of action in my opinion, since it allows a bit of freedom to the player. Maybe even add in a feature where you could betray and kill them, or maybe they'll attack
you if you fail to earn their trust (since the movie implies that each of the characters had
something to do with the construction of the facility). But the catch is that it would need pretty good AI to be believable and not unintentionally funny (walking into walls, spouting the same line of dialogue over and over again, getting stuck on terrain, etc.).
2. Scripted characters. You could make far more realistic interactions with other characters this way, and far more realistic solutions to the puzzles... but the problem is that it might make the game feel linear. If solutions to puzzles become linear, it'll make the game feel more like a guided tour than a game. This is probably the best choice to make it look cinematic, but the worst choice to make it fun.
3. No other characters, just you. This is without a doubt the easiest way of doing things as it removes a lot of complexity... but you've also removed one of the major components of the film.