Conceptually a pretty cool map, have a nice retextures of wall using the ice floor, giving more context to the main theme of icy cavern present here, the layout is good, some room design are pretty good for the age it was done (especially the starting area) but it's unfortunately ruined by two things: excessive slippery floors and a no exit lava pit, as well as the random nature of switches placement that activates something... somewhere. Where is not given to you to known, the same things happens for a secret (mandatory) corridors areas that connect the said grave. But despite this, is not that bad, actually!
Meh, conceptually is not a bad map but in reality is really boring. Lots of squares and platforms, lacks of powerful guns and a boring gameplay. Also how the exit can be activated? The teleports are shitty as well.