Sanctum: Killing Flor is a DLC for Sanctum that adds a new weapon called "Killing Floor" which Much like the Slow Field and the AMP field, is something that can be placed in the path of the player enemies. Outside of the players themselves, the field will damage anything that comes into contact with. It can be upgraded multiple times as well.
It requires the original Sanctum installed.
PC System Analysis For Sanctum: Killing Floor Requirements
Your PC will need a graphics card thats as powerful as a GeForce 7600 GS/Radeon HD 2400 Pro and it should be paired with either a Athlon 64 X2 Dual Core 4400+/Core 2 Duo E4300 1.8GHz CPU to match the Sanctum: Killing Floor recommended system specs. This PC setup will deliver 60 Frames Per Second on High graphics settings on 1080p monitor resolution. 2 GB will also be needed to achieve the Sanctum: Killing Floor rec specs and get 60FPS. We suggest a 13 year old PC to play smoothly.