ToN's story is interesting and searching for treasures in the jungle, solving puzzles, crafting items is funny and entertaining too. What ruins the enjoyment is the overall obsession with animations. I recently played Good Girl Gone Bad - no animation at all, but the sex scenes were way better written and exciting than ToN's sex animations.
GGGB shows that a game doesn't need super quality animation to be fun and exciting. All it requires is to make the sex scenes as hot as possible, but I don't think you can achieve this with animations only.
I think that sooner or later NLT will hit a bottleneck with RPG Maker and then will move on to Unity. It may happen with his next saga already (after TGO).
A game engine like Unity would allow to create more features and game options for puzzles and mini-games compare to RPG Maker and its limitations.
On the other hand players may need technical support to make the game run their computer/phone. Unity for example use the users hardware and software to run a game so, with a user isn't able to maintain his system the game might not run.
