Easier to use, fewer bugs, no need for expensive paid support or engine developers on your team. When I used Unreal Engine, I found and fixed engine bugs. Whe

Easier to use, fewer bugs, no need for expensive paid support or engine developers on your team. When I used Unreal Engine, I found and fixed engine bugs. When I used Unity, I found engine bugs and we had to work around them with ugly hacks. When I used Defold, we shipped without ruining into any trouble. Of course, Unity and UE are much more powerful. But if you don't need that, simple is king.