A tech lead from King wrote a game in Defold and streamed on livecoding.tv: <a href="https://www.livecoding.tv/video/small-game-from-scratch-part-2/" rel="nofollow">https://www.livecoding.tv/video/small-game-from-scratch-part...</a>
So, a 2D Lua Game Engine with a Scene Editor?<p>At a cursory glance it seems like <a href="https://coronalabs.com/" rel="nofollow">https://coronalabs.com/</a>, but it's free, which is nice :).