During the game hit ~ to open the console, then type exodus 15:3 to enable cheat mode.

Code - Effect

god 0 / 1 - Toggle God Mode
nextlevel - Skip current level
fly 0 / 1 - Toggle Fly Mode
setres - Set current resolution
list - Other commands
changecharacter - Change current playing character
botcombat - Toggle botcombat
botmove - Toggle botmovement
botforcefight - Toggle bots forced fights
listplayers - List all active level players
addbot - Add a new bot based on a script
editbot - Edit bot traits of given ID
removebot - Remove the given bot from play
makebotdead - Kill the given bot
playmovie - Play given movie
botorders - View current bot orders
getres - Get current resolution