All-male boarding school
All-male religious communities
Effeminate or at least lithe-bodied males together
Eunuch harems
Army-themed gay stories, whether they are costume drama-ish or XXI century
Historical navy or pirate gay, with lots of swinging lol
Gay NTR (without fat, bald, ugly bastard characters, please)
Seducing and converting a hetero person to gay. Not trans, no girly hormones, or surgery. Just from hetero male to gay male. (Don't attempt that IRL, it doesn't work lol Seriously)
A Male-only postapocalyptic world with ABO dynamics and maybe m-preg lol
Older bottom MC with a brain and personality
Twink/lithe male on top
Mythological monsters, not furries
Lavish male lingerie
Leather, vinyl and/or velvet
Mafia setting for a gay game
Something like a boarding school, but for gay prostitute training
Male courtesan fucking his way to the top, with lots of court intrigue
Valets and footmen, lots of them, elegantly dressed.
Mason-ish cult with ritual gay orgies
A game where you have to seduce your (male) boss and risk getting fired and sued if your advances make him angry (game over)
Not a misogynist though, just gay