Whoremaster is an amazing game! I really want to see it grow. I can hardly wait for the next update (and I'm sure I'm not the only one).
The only other games I really play right now are Sengoku Rance and Slave Maker. I used to play Sim Brothel as well... But it's pretty much dead now, and in my opinion the weakest of them.
I've tried both Otherworld and ASlave. I'm impressed with Daisy_Strike's game, and I'll probably play it a lot more once it has more content. ASlave is pretty good and it seems to be coming along nicely.
Also, has anyone played Artificial Girl? I never have, and apparently the newest version is AG3(+?)? I hear it's great though. Maybe I'll download if I find some good links.
Oh, and I was going to suggest that you guys check out Rapelay, Robozou Doll Play and/or Lusty Ladies Sex Club.
I enjoy them all XD