Who are the guys I can date? I know you get to date Adam, Jake, Carlos and, I assume, Nikhil, but are there others? Also, who can have a threesome with me and Carlos? I really don't care about Dan.

There are four normal routes (Jake, Carlos, James, Dan). Adam is a secret fifth route. No other guys are dateable, although Elliot and Nate and sex-able (mostly via Dan's route).

All threesomes involve Dan in some form, but you can turn them down unless you're on his route.