I just made this up and tried it out with a group of friends, and it was pretty fun.
Here's how you play:
1: In this post, I'll have something along the lines of this:
| What if [DEVELOPER] developed [GAME] instead? |
2: The next poster has to give at least 2 examples of how that game (or game series) would be different if the stated developer had developed it.
3: That poster has to finish off their post with the "What if" line.
4: To make life easier, include some big franchises that developer has done.
So....
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What if Valve (Half Life, Team Fortress 2, Left 4 Dead) developed TRON 2.0?
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GO!