Unity and Unreal have dominated the development scene for a long time now, and were used to make roughly 70% of the games released on Steam in 2025. Godot has seen some significant growth in the past few years, and many big companies still favour proprietary engines – like Capcom with its RE Engine – but otherwise, Unity and Unreal have got the game engine market sewn up.
The 'Never Write Your Own Engine' Rule Is Quietly Dying