This is an edit of the demo map that even includes an alien.
* More Enemies
* More Buildings
* More Vehicles
* More Weapons
* 1 Alien
* A new little Island with more weapons (difference between #4 and #5)
1: Go to your Crysis game folder and open Crysis Demo -> Electronic Arts -> Crytek -> Crysis SP -> Demo -> Game -> Level.
2: There in this folder called island is the level.pak, rename it to level1.pak or what ever you want. (Do it only if necessary)
3: Copy the file from the downloaded file into the current game folder (Game/Levels/island/).
- If you want to play the normal Crysis Campaign again just rename the original island folder to island (Only after you have renamed it before).