The Last Wisp by Mordokay 2017-08-02T14:38:10Z
For the first run it spawned me trapped inside rock) wisp.png
That aside, graphics look nice - low poly rocks and particles, enemies could be less sphere-like.
You should generate seed randomly, asking that from player every time is a bad idea, keep this as option.
Fog of war looks really creepy when you've run out of light, but yeah, i don't see a straightforward solution for this.