I wasn't expecting the engine to handle something like this. Really excellent graphics and the game mechanics for the temple collapsing is really good. Music is excellent too. I will mention three things you should figure out a little bit more if you want to expand a little.
1. The shadows can be very distracting, especially the MC one where it looks funky and giant. I wish there was a setting to change it a bit.
2. The right click to get a sword in or out, but there is no reason to put the sword back and it's hard to see which fighting enemies, and even with what feels like 10+ hits I couldn't kill whatever was attacking me. It was hard to read, seems like the only feedback on a hit is a sound effect and the blood. This was the biggest thing I encountered. Maybe a way to push an enemy away instead of pulling the sword out and back with right mouse?
3.Sprint button that disables using the sword to use to add a little more mechanics to the game.
Other than that you have something very good in your hands and I hope you do more with it.