Serious Sam 3: BFE

Auto aim cht_bAutoAim
Display all the messages in NETRICSA cht_bShowAllNetricsaMessages
Invisible to enemies cht_bInvisible
Flight mode and pass through walls cht_bGhost
Flight mode cht_bFly
Gain ammo for indicated weapon chtGiveAmmo(<weapon name>)
Gain armor ch_slGiveArmor
Gain health cht_slGiveHealth
Spawn indicated weapon chtGiveWeapon(<weapon name>)
Gain all available weapons and maximum ammo cht_bGiveAll
God mode cht_bGod
Increased speed cht_bTurbo
Unlimited ammo cht_bInfiniteAmmo
Kill all enemies in line of sight, except Bosses cht_bKillAll
Kill current Boss cht_bKillBoss
Mental difficulty cht_bUnlockMentalMode
Press [Tab] to list cheats cht
Disable cheat mode cht_bEnableCheats = 0