Honestly, a very decent initial release. I'll happily give my criticism if it helps with development.
First, the issues;
1- I noticed the grass stretches in some spots, might be related to an issue with random generation.
2- Framerate drops when I turn my camera towards the center of a wild island, might be just my PC but I have a decent rig so I'm not sure if it's something that needs optimization down the line or nah.
Now for suggestions, entirely up to the developer in the end but I thought I'd give my two cents.
1- I recommend a way to enhance inventory space in the future, this would make loot-grinding less tedious in the later stages of the game.
2- If it's not planned already, ranged weaponry in some form would be a nice addition.
3- Grapple mechanics? Maybe? It'd be interesting to encounter hostile NPC's trying to take advantage of you. Can't imagine 'everyone' is able to stay sane in an environment like that.
4- Dom/Sub variants of different sex actions would be a way to add more positions to currently existing sex acts, although expanding on different fetishes may already be likely I figured I'd mention this in case it was considered the player may want to be more submissive, or more dominant when performing sex acts.
Looking forward to seeing more!