Pretty solid, yet simple premise. My only complaint is that the snake needs to be heavily nerfed. Once it's on your tail, it feels pretty much impossible to get away from it. That, and the fact that the snake just kinda boops into you and knocks you over is a little goofy. Took me a bit by surprise and sorta took the scare out of it the first time it happened. I didn't even know I was dead until it cut to the death screen.
Other than that, sound design, graphics, and atmosphere are pretty on-point. The full release is on my Steam wishlist and it looks like it's in a very different stage of development compared to this demo. So I'm hoping that some of the issues I have will be addressed in the full game.
Overall, I'd give this demo a 4/10 just cause i couldn't get far due to the difficulty and mostly found myself trying to figure out how to properly avoid the snake. But I still plan on revisiting this in the future given how promising this is.