To run 99 Levels To Hell on high graphics settings your PC will require at least a 64MB GeForce GTS 250 / Radeon HD 6670 with a Core 2 Duo E7600 3.06GHz or Athlon II X2 270 CPU. For your PC to completely meet the recommended requirements you will also need 4 GB system memory. To run 99 Levels To Hell even on low graphics settings your PC will require at least a 64MB GeForce GT 330 / Radeon HD 3600 Series with a Celeron E1500 Dual-Core 2.2GHz or Athlon 64 X2 Dual Core 4800+ CPU. This will return an average of 30 frames per second. To be able to run at all you will need at least 2 GB system memory. Your GPU is expected to be able to deliver DirectX 10.00.