The Compressor - from The QuakeLab - concept by David M. Spell or The Compressor - from The QuakeLab based on a concept by David M. Spell is a Single Player level.
Walkthrough
In front of you are 3 Floorplates with standard flooring in between each section. Each Floorplate will trigger 3 Movable Walls beside each Floorplate, crushing any players not standing on the normal flooring.
Gallery
The Compressor - from The QuakeLab - concept by David M. Spell