There are a few games that I might recommend that are currently free-to-play:
Deep in Brixen Space is likewise about a heroine exploring through an abandoned space station, and avoiding getting banged by the monsters, only as a 2D Platformer, starring a furry.
Drain Mansion is a 2D Platformer about a boy who needs to avoid getting raped by succubi as he explores a mansion/dungeon searching for his lost sister. Although there's still a free-to-play version, the developer has since moved on towards developing a more advanced version that does require some money to pay.
Lust Doll Plus is about a custom character exploring a large world in an RPG-styled open-world game, though the sex scenes in the game, while lacking in visual animation, are heavily detailed in terms of narrative description.
The Fixer is also an open-world adventure game that, like Lust Doll Plus, focuses less on animating sex scenes than it does describing them, only this one's built using the Ren 'Py Engine.
Finally, while not quite free-to-play, Wings of Roldea offers a free-to-play demo, with the game being a top-down game with randomly-generated dungeons to explore (think Pokémon Mystery Dungeon), starring a woman adventurer whose clothes can get destroyed, and who can sell herself out for sex, after some time spent getting raped by monsters. If you end up liking the free-to-play demo enough, then perhaps it could become one of those games that you'd end up purchasing for yourself?
Also, there are a couple games that I'd recommend checking out, despite not being free-to-play, and they are Demon Master Chris, and Sakura Dungeon, both of which are these Legend-of-Grimrock-esque dungeon crawling RPG games that were built in Ren'Py, and that both feature attacks that strip characters of their clothing.