At the 2014 Global Game Jam, a friend and I met two others, and we put together a low-poly infinite runner called Dune World.
It's up currently on Kongregate. Someone managed to get over 200k, I'm still not sure how.
I was responsible for all the visual assets, as far as the modelling was concerned. Props, environment, vehicles, and the HUD, were all my doing. I also UV'd and textured the two vehicles.
All in all, it was a fun weekend, with a lot of learning, a little sleep, some air hockey, foosball, talks with half of Xona Games, and a game that was presented with only a few glitches.
I'm definitely going to take part in more of these.