During the game press ~ to open the console, then type in exodus 15:3 to enable the cheatmode.

Cheats - Results:

god 0 / 1 - Toggle God Mode
nextlevel - Skip current level
fly 0 / 1 - Toggle Fly Mode
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
setres - Set current resolution
list - Many more commands