Damn, that's a blast from the past. Part 7 was my first in the series and I went ooga booga when I discovered some of the secrets/cheats. Thanks for the share.
RenPy for versatility, but most games kinda blend into each other at this point.
Unreal/Unity for 3D games, if the devs know how to use those engines properly. My PC isn't even that bad but some Unity games run like utter ass on my machine.
Man of the House, The Visit, Prince Of Suburbia, Milfy City, Sisterly Lust, FILF, Demon Deals, Last Hope, Measuring My Cum, Lust Epidemic, Insexual Awakening, Heart Problems, Five Of A Kind
Doesn't Summertime Saga by now have pregnancy that's not tied to endgame stuff? And you can impregnate a lot of the ladies last time I played it, but that was a long time ago.