Hey, it seems like Penance is a decent match for your preferences! It's a horror game set in Hell, so very thematically appropriate (although it seems we've lost the last of our SPN cast at the moment, unfortunately :( ). Characters can work toward redemption or corruption and are given opportunities for both (though obviously Hell favors temptation).

There are monthly events with a variety of scenarios from more SOL-like to more extreme, and there's downtime in between for more casual shenanigans. Speed varies player to player but overall I'd say it's about medium, and AC is only 8 comments across two threads. Sex is usually a part of at least one prompt each month but it's purely opt-in and not required for AC.

If you're interested we have a new TDM here.