The idea is pretty good and visuals are really great. The music also good, but it could have been fun if there was different on top and under water. I am not sure there is a final goal with this game, and if there is I don't now what it is. It was also a bit weird that I can't swim up and down when pressing the w key. Overall is this a good jam game.
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Thank you for your feedback! I wish I had more time to improve it, at the beginning I was planning to create different buildings and a story (narrated through the achievements) to the game but I had to focus on the modelling and the game mechanics and a week really flied away a blink of an eye. I also spent too much time implementing the achievements (it's was my first time using AWS and I couldn't even figure how to package a game from command line, and UE5 wasn't even supported by their plugin so I had to update it 🤣)
The "final goal" (if you can call it like that) is to gather all the billiard balls hidden in the house, if you see the speedrun video linked in the game page you can see the achievements (login is required in order to see them, this is a big limitation), also seeing the list of the achievements and their description should guide the player through the exploration (and this doesn't happen if you don't even see them)
The fact that you can swim up and down with the W is a wanted thing, but you are probably right, it could be confusing!
Thanks for playing!