An interesting skeleton or proof of concept. The idea for the game is interesting, you're a stone age man and want to have your hut and wives and stuff.
The problem is that the game is buggy as hell. Enemies will hit sometimes hit you without actually attacking, getting resources is pure RNG on the right map, you can only bring home one resource (crate, wood or woman), you always get attacked during the night, you can't remap controls, you can't even see the keys used for playing with keyboard/mouse (AD for movement, E for some interaction, space for dodge, H for the heal ability, left CTRL for attack, left ALT for grab, SHIFT for rock throw), screen transitions take 10 seconds, not counting the load times.
The sex animations are all unlocked and easy to access, once you get the first wife. There's no point in having sex, tho, you just end up wasting an afternoon. All the useful things in the game can only be done during afternoons, so yeah, sex is actually a waste of time.