I'm trying to find some old game, I don't even remember if they're on DLSITE, it was just a few pixel art game from some guy mostly about inflation, the girls would always be restrained and one way or another the worms would get inside them (or not). my best memory of those games was one where you had to click the worms to prevent them from getting into the girls, every times you would let one reach one her stomach would get a little bigger until some kind of "facehugger" would come down and plug them full. I remember the engine being peculiar, i havn,t seen a recent game use it. they were nothing huge but the art was nice enough if you were into pixel art.
there was no winning, more of a demo of solt, but the fluid animation stuck with me. who know maybe someone still has laying around.
actually found a game using the engine and same art sttyle: rj108476. unfortunately it seems it's all i can find .