Just some references that should go in the OP (lemme know if there should be others!):
RogueBasin entry for 7DRL Challenge 2012Temple of the Roguelike 2012 7DRL Challenge EvaluationGame Hunter's 7DRL 2012 Challenge YouTube PlaylistIt would probably be too much to make a bunch of different topics for each game that comes to mind, so I will simply create a thread where we can talk about all of them! Here's what comes to mind for me:
Infiniverse: has anyone found naturally-occurring antimatter? It doesn't seem like you could win the game in a reasonable amount of time (especially given no saving at all) without collecting some Antimatter to either sell or help for the journey towards the mysterious X at the center of the galaxy. It's possible to buy some but, frankly, it seems more cost-effective to use radioactives as fuel, and everything common is pretty darn cheap to sell.
Sword in Hand: In case some people beat it without realizing this, it's possible to play four scenarios in a single game. Whether or not the fourth shows up WILL depend on your combination of war/peace choices. To be honest, however, I found the fourth dungeon to be easier than even the second.
Drakefire Chasm: Has anyone else passed the eight dungeon level? (It's the second "boss arena".) I managed to lava-scum it but those enemies are really, really hard: it would be really nice to have a damage indicator when you examine things (even as vague as their current state that you tend to see after melee attacks would be sufficient). The twelfth level totally destroyed me, though, and it only took the enemies three turns to do it. I also have no idea how stat-gains work: part of me wants to believe it depends on your actions on the previous floor, but it doesn't seem to track like that at all.