Did you like the ideas from last time? Here are a few more ideas from my idea notebook:
A game where you are a janitor at a big, explorable place with interesting characters. Cleaning would be made into a fun, satisfying activity, so you go around doing your job and end up seeing a lot of different places and characters. As you explore, you encounter all these different stories that you can observe or ignore or interact with, that arise from the characters you encounter and the larger situation itself. Like in Spirited Away. Or a place like Hogwarts, or the hospital in Scrubs, even. I'd really like play a game like that.
Web startups seem to be obsessed with metrics and analytics to direct their efforts. It's a lot like the feedback in games telling you what works and what doesn't. Why not make a Web 2.0 startup game based around developing a business around these metrics? Usually in a game the feedback tells you one specific thing, or leads you to some specific understanding, but what if instead each new game had different feedback rules, like a random map? Then you're not simply learning one particular model through the feedback, you're learning a general strategy for how to use metrics and listen and adapt to feedback.
A game about eating your cake and having it too, where you must eat cake to survive, but your social status is based on how much cake you have accumulated. Then there could be a special powerup that lets you eat cake while having it too, for a limited amount of time.
A game or environment sketch where some people are walking by, on a street perhaps or in a variety of environments. But you can only see them from the knees down, only the lower legs and feet. The challenge is to make the walkers as expressive as possible within this limited representation. One effective way to differentiate between characters could be size, like a parent and child. More interesting could be using differences in dress or gait to distinguish between the characters.
A game where all each person is rendered as a single sketchy line, redrawn each frame or so to show the gesture and pose of the person without necessarily showing what they look like. The line would be more or less straight, not looping around, and usually tracing a path from the head to one toe.
Just a few random ideas. :p
What do you think? Let me know if you want to try making or collaborating on one of these ideas. I'd like to hear from you. :)