[nacs]

I've found Lua engines like Love to be great for prototypes and gamejams but when it comes to implementing a full game its not as good as the full blown engines like Unity/Godot.

If your game has more than trivial amount of UI, particle-systems, 3D, etc then it becomes very time consuming. To write and tweak a full blown responsive UI like in-game windows, alerts, animations etc with code-only is not trivial. With a full-featured editor like Unity and Godot, UI, particles, tweened-animations and such becomes much easier as you can keep interactively tweak things around until its perfect without the edit-code & recompile cycle.

There's also King's "Defold" engine which uses Lua and has a visual editor but the last time I used it over a year ago, I found there was almost no in-game UI libraries so although making the prototype was fun and relatively easy adding UI became difficult.