It´s cool and cruel at the same time… Max depth was 250m aprox. Music, ambient and concept are really cool!! Congrats! You have a good start here for add more mechanics and features…
The procedural generation takes time, and if you fall into a dead-end, it´s a bit boring waiting another 30 seconds without going out.
If possible, it could be great if, in the first 100 meters, the dead-ends have a real possibility to jump out.
I want to see more if possible ^^