[TowerFall] Ascension's revealing trailer notes a co-op quest mode, new powerups and 50 new multiplayer maps. Althoughthe game's focus lies in multiplayer, Thorson responded to a fan on Twitter to clarify that there "won't be any online at launch, sorry. It's really meant to be played together with friends."
Seriously, I'm in my 30's, and some of my friends have moved out of state, or they were met online in the first place. I shouldn't have to arrange a damn "play-date" with local friends to enjoy your co-op / competitive multiplayer game in 2014.
I get that programming multiplayer is probably a bitch to implement correctly, but if that's the case, either admit it or come up with a better way to brush the question aside.
But whatever you do, just don't suggest that I simply MUST see the faces of my friends to get the "true" TowerFall experience, and anything less wouldn't be worth playing.