Collab game for great OC

The 2012 resolution thread (http://dis.4chan.org/read/prog/1324897198) took a turn after some riders suggested collaborating to make a video game. This thread attempts to more formally continue that line of thought.

Main points from previous thread:
0. /prog/riders of 2012, unite
1. Collaborate to make vidya game
2. Should be easily extendable by non-programmers to make Original Content
3. Make a simple campaign to demonstrate scripting so others will be able to learn and contribute their OC

Goal of this thread:
0. /prog/riders interested in the game idea, stand up and be counted (please use a throwaway name#trip)
1. We can see what set of skills are available in the group (please indicate what you're able to contribute - code in [language], 2D/3D art, text - in order of your ability with each, most skilled first). Feel free to mention anything else that might be useful/important.
2. Based on skills available, we can brainstorm realistic game ideas ITT (simpler deliverable is going to be better, since we likely haven't worked together before - if a solid group forms from the experience, we can later try something more ambitious).
3. Reach consensus on a specific project (reply to any you like, add your own ideas, repeat...).
4. Set up communication channels (IRC/wiki/mailing list) for those who formed the consensus (it's possible more than one project attracts an interested group).
5. Work out details, responsibilities, timeframe, etc. on alternate communication channels.

tl;dr Read SICP.

Looking at the tripfag skillsets, it seems there are two languages in common:
Python
C/C++

I like the idea of a 2D real-time action game like Legend of Zelda. Even if we don't have many autists artists, we could re-use the sprites from existing games (or just develop with placeholders until a wild drawfag appears. The biggest improvement over classic Zelda would be more (branching) dialogue, as well as the aforementioned level editor for easy customization.

The biggest weakness I see in a Zelda-style game is lack of multiplayer (which is why I was using beat-em-ups as an example in the other thread). In the spirit of making a simple deliverable first, I'm okay with that loss - the ability of others to extend the map/quests gives it enough multiplayer flavor.

I'm personally weaker at C/C++, but wouldn't mind trying, since that's the only language the tripfags ITT all have in common. I'm sure there are libraries out there that make life as easy as Pygame does ...right? Please point me to one, since I've been out of the loop for a while. If you can't offhand think of a good C/C++ library for this kind of game, I highly suggest looking at Pygame, since it's so goddamn easy to make this kind of game with it.