The graphics are amazing and close to the first Crysis. Nice job. However as a game demo it's really difficult to play. First, there is judder/stutter on the gun, even with good performance (it's not the FPS, it's some sort of animation/smoothing issue). The aiming itself also feels weird and too fast and not smoothed out at all (you could look into mouse smoothing, low pass filters, etc.). The enemies are WAY to hard and just one shot kill you. For this kind of demo you should be almost invincible. Also the sound effects don't sound properly mastered in terms of the audio mix and volume. So a good amount of gameplay work left, but at least the graphics look great.