Hi,
So having played 40 mins of the game or so before quitting out of frustration, I have some feedback:
The "porn" part of this porn game is exceptional
The "game" part of this game is, to put it bluntly, cancerous. It looks like an early 90s point and click and has the blocky, pixelated graphics (even with everything on max), unintuitive layouts, pointless timesinkyness and "My First Gamemaker" teir combat.
Highly suggest you make this into a story VN before attempting to "fix" the sandbox any more.
Combat is a boring chore, moving around is unintuitive, having all these different powers and whatnot is unintuitive. Every part of this sandbox is going to become an unforgivable grind or worse, be effectively pointless filler inbetween the porn.
Now, I'm a bit biased because I think most sandbox games are utter dogshit where the developer thinks having to click through the same scenes you've seen 20+ times is rewarding or something (because they're on crack) but like..... this one takes the cake, this game will forever be my example when im telling people how not to make games.
Basically every part of this game that isn't the "sandbox" exploring/combat main loop is great, the sandbox main loop is ATROCIOUS, perhaps just get rid of it and tell the story.
REMEMBER, IF PLAYING YOUR PORN GAME IS MORE EFFORT THAN PLAYING A REAL GAME, PEOPLE JUST WONT PLAY YOUR GAME
....which means at the moment you're kinda screwed. I hate to be that guy piling on but damn, this game is going to be an unfun wreck if you don't do something drastic about the sandbox asap
TL;DR EITHER make a porn game OR an actual sandbox adventure game but please for the love of all things sexy stop combining them. Or if it's gonna remain a sandbox make it far, far, far less convoluted. Simplicity is key.