So I've always liked the movie "The Running Man" and thought it would make a good dnd/pathfinder adventure. So, are there any official modules like this?
I meant more like one where they are first into a "game" where they have to fight to the death for people's amusment.
Council of Thieves book 2 (The Sixfold Trial) has the PCs need to go through The Six Trials of Lazarod. By default, the PCs are doing this to get invited to a post-play party so that they can search the host's manor, but it seems real easy for things to take a nasty turn and the PCs get outright conscripted instead. Later on (I think in book 3, but I'm not 100% sure about the book boundaries), the PCs encounter a gladiatorial arena -- by default, participation in the arena combat is considered a matter of prestige, but again it would be real easy for things to take a nasty turn and the PCs get outright conscripted instead.
In Hell's Rebels, if things take a nasty turn and the PCs get captured and enslaved, they could be forced to fight in a gladiatorial arena, although this situation doesn't seem to be as close to ready-made as the 2 situations in Council of Thieves.
Aspiring Hellknights have to win a fight to the death with a Devil of more hit dice than themselves (normally summoned), witnessed by a Hellknight. It would be real easy for the witnessing Hellknight(s) to enjoy this too much . . . .