We also use a pixel art style with a 8-bit aesthetics hahaha. All the character were made by us and we take the background environment from this page https://www.kenney.nl/assets . I really recommend it because all the asset are fre to use and modify, grat page :D.
So, for our game, we made a roguelike were all the values and stats epend only on one value. It was fun to balance it all, with all the mathematics equations hahahah. Check it out if you like!
https://itch.io/jam/gmtk-2019/rate/461305
