Scratch, MakeCode, Godot but since 3D is a requirement, godot seems the more appropriate option. Although, I would say too early. Have made many small games w

Scratch, MakeCode, Godot but since 3D is a requirement, godot seems the more appropriate option. Although, I would say too early. Have made many small games with/for the kids (6yo and 10yo) in Scratch and using microbit+LCD and Makecode Arcade-compatible. Start small, grasp the basics before starting on something big.