Main Cheat Codes
NOTE: These are the main Crysis cheats that are usually applied by pressing down the right key combination. Please find the instructions on how to use these cheats below.
God Mode
NOTE: ALWAYS MAKE A BACKUP BEFORE CHANGING GAME FILES.
Locate the difficulty files in your Crysis installation folder (ie: C:\Program Files\Electronic Arts\Crytek\Crysis\Game\Config). These files are called diff_easy.cfg, diff_normal.cfg, diff_hard.cfg and diff_bauer.cfg. Open the file (with Notepad) that corresponds to the difficulty level you are playing. Add the following line to the end of the file and save it:
g_godMode = 1
Now, when playing your health will still decrease but you will not die. Instead, your health and armor will automatically replenish when your health reaches 0.
More Cheats
NOTE: ALWAYS MAKE A BACKUP BEFORE CHANGING GAME FILES.
Using the same method as above, add the following lines to the end of your config file for the corresponding effect:
i_unlimitedammo = 1: Unlimited Ammo
ai_IgnorePlayer = 1: Enemies Ignore You
i_noweaponlimit = 1: Carry Unlimited Number of Weapons
You can also modify your suit stats. For example:
g_suitCloakEnergyDrainAdjuster = 0: No energy loss
g_suitRecoilEnergyCost = 0: No energy cost
g_suitSpeedMult = 2.85: Run faster
g_suitArmorHealthValue = 900.0: More armor points
g_playerSuitArmorModeHealthRegenTime = 0: Instant health regen
g_playerSuitArmorModeHealthRegenTimeMoving = 0: Instant health regen while moving
g_playerSuitHealthRegenTime = 0: Set health regen time to 0
g_playerSuitHealthRegenTimeMoving = 0: Set regen time while walking to 0
g_playerSuitEnergyRechargeTime = 0: Set energy regen time to 0
g_playerSuitEnergyRechargeDelay = 0: Do not wait until energy regen starts
g_difficultyLevel = 1: Set difficulty, 1 is easy, 4 is most difficult
After making all of your edits, save the file, load up a new game and see what you've edited!