No eroge novels (aka 'erotic visual novels') in this list: there are so many of them that we have made a page just for them.We also have a page for Adult interactive Fiction for smut made by non-Japanese writers.You play as a cute young woman who can transform and get different costumes and abilities by "magicking" certain objects, like swords, bows, brooms, etc.Not much to do besides kill some monsters and A community-made spiritual successor to Hentai High School.The idea is to get as many of them as you can before time runs out.Some of the girls can also be assimilated when you gain a level after engulfing them for another H-scene and a stat bonus.
You can get it and the full game from the author's blog: You play as Raidy, an adventurer, wandering the continent of Else.
ZONE games aren't really games, but sweet Jesus does 4chan love them and each one is well-made. Another Illusion game, so it's good stuff as usual.
You can create a classroom with 25 students complete customizable (the male customizations are really poor compared to the female ones) and then see how they react with each other.
A beat-em-up style vore game where you battle against all kinds of monsters and sexy monster girls (such as lamias, harpies and spider girls).
The game can be rather challenging, but you can collect upgrades to your sword and energy shot along the way, as well as other bonuses. Many people play for the h-scenes but the plot is actually nice and it almost looks like a parody of the genre.