Thanks for playing and kind words!
About the gravity, I spent the first 2 days of the jam trying to implement it myself. Then, luckily I ran into a tutorial by Ari Arnbjörnsson from Epic Games. It's fairly simple when using the UE CharacterMovement Component, but it does require some smart rotation manipulations to the controls and camera. You can check it out in the link:
https://dev.epicgames.com/community/learning/tutorials/w6l7/unreal-engine-custom...
Indeed I went all over the place with the mechanics, I should have focused and polished one of them given the time constraints. I'll keep it in mind in future work.
Cheers!