Post adult games that are gay-themed or has gay sex scenes. Hopefully free. I'll start.
Strange Flesh (pic related)https://www.youtube.com/watch?v=sr3KC5cOvMs
Free game, lots of sex scenes, drunk sex makes you bottom, and it has 3 actual endings. Great gameplay. The artist also drew the characters in Bastard Bonds (doesn't have gay sex in it, but there's a lot of naked bara characters).http://greatestbear.com/strangeflesh.html
I guess everyone also knows about Corruption of Champions (finished; fullchan added more content like pissplay) and Trials In Tainted Space (on progress), which are both text-based flash games.