Princess Knightess Elena ~Captive in the Dungeon of Lust~

Elena, a knight princess, gets dragged down into a dungeon built on old-school roguelike logic and stocked with monster girls happy to have her. The framing is blunt about what it is and doesn't dress it up beyond that.

Everything runs on mouse input alone, simple enough to play one-handed, as you push Elena through combat encounters against tentacled creatures and other dungeon residents, with pregnancy and censored vaginal and oral content marking the losses. Character portraits are fully animated during these fights rather than static.

A gallery mode is open from the very start, so every scene is viewable without grinding for it. The game also warns you it takes a moment to load when you launch it, and apologizes for that in advance.