My feedback on Intus De Limo:

What your game does well:

The tranquility in each of the cores is peaceful. The graphics are nicely done as well.

The game is a concept for the theme 'inside out'; extract cores from inside slimes and bring them out to repair the ship.

What your game doesn't do well:

From my perspective as a player, it seems like the game is trying to do a lot at once. Other than walk around in the overworld there isn't much else to do. This could have been a stage select menu.

The controls in 3D segments feel unresponsive, or the player is confused about how exactly they work. When I held right click there's no visual feedback at all. It sounds like a sucking sound but it's not clear the range or the power of this action.

I also wasn't sure how to move myself toward what I'm supposed to mine without depleting all my oxygen. This seems counterintuitive.

Areas of Opportunity:

You've got a great concept for a game, but the execution could improve. I recommend making it more clear than just a controls menu on what the player is supposed to do in those 3D segments.

I hope this feedback helps!