I've shipped commercial games alone with Unreal Engine 4 and Godot. I highly recommend Godot 3. Godot 4 wasn't quite baked last time I checked, but it will be a

I've shipped commercial games alone with Unreal Engine 4 and Godot. I highly recommend Godot 3. Godot 4 wasn't quite baked last time I checked, but it will be a ripper with Vulkan support and very much of an overhaul. If you're half-clever with your 3D knowledge (don't render an entire world in 1 mesh), Godot 3 is perfectly fine. The tooling of UE4 will win any time if you want to do open world though. Even though I've made a pretty convincing prototype, _huge_ blade-runner kind of world in Godot with flying cars; so it's all technically possible. In other words, if you don't need consoles (and frankly as an indie you don't want to deal with the big boys), Godot is perfect. Just don't hope you'll live off your game any time soon though, the indie market is utterly algorithm driven and therefor fucked. The learning experience and the joy of using Godot however, is well worth learning game development with. Godot and Blender are really becoming some of the best in class in their own field.