Well executed idea.
It took me only three tries to escape. I would have like to explore a bit more. It may be hard with procedural generation but you could make it a bit longer and give false hope to the player midway, for example by finding an illuminated place, but it's only the base camp with a broken radio, to reinforce the loneliness feeling?
Thank you for playing! Those are interesting suggestions. I only set out to reinforce the feeling of being lost and claustrophobia, but I have definitely noted down your ideas for when I update this game or build something on top of this.
Edit: One thing that I ran out of time for implementing, was custom map generation. That would allow players to have e.g. more cave wall structures, wider or taller maps, etc.
