Godot ships a complete engine, editor, and export pipeline under the MIT licence, which means no royalties, no revenue thresholds, and no licensing conversation before a project starts.
Commercial game engine with the widest platform reach
CompanyUnity Technologies
Since2005
PricingFreemium
Unity's advantage is distribution. Console certification, mobile export, XR headsets, and the middleware ecosystem around them are all solved problems, which is why studios keep choosing it even after several rounds of unpopular licensing changes.