Check out Moons Of Darsalon!
Another game with a crazy passionate developer, 8 years in the making.
Visually it's a beautiful 2d platformer with a blend of 2d and 3d yet somehow maintaining a really cool retro aesthetic.
The gameplay is what makes it really interesting, it's a "save-them-all" platformer where you complete rescue missions on alien planets. (I wonder if they ever ran into Zapling?) It has really fun physics and shooting too as well as the ability to manipulate terrain.
There is so much more to it that I can't fit here, just go try it yourself.
https://store.steampowered.com/app/1234180/Moons_Of_Darsalon/