And here is some unofficial information... the game cheats:

Press the tilde (~) key to bring down the console, and input one of the following:

bestbuy : Units are 10% cheaper.

jericho : Walls will crumble.

add_money X : Adds money. X = amount.

add_population Y X : Adds population, where Y is the settlement name and X the amount.

auto_win attacker/defender : Attacker or defender automatically wins the next auto resolved battle.

create_unit settlement/charactername unit_ID amount exp/armour/weapon : Creates a unit in the selected settlement or characters army with the stats you input

toggle_fow : Toggles Fog of War

give_trait characternname traitname level : Gives the character the trait at the chosen level.

process_cq settlement : Finished the building queue in the settlement

list_traits : Lists all traits

move_character Z X,Y : Moves character to location, where Z is character name and X Y are coordinates.

give_trait_points charactername traitname points : Gives points for the character’s trait.

force_diplomacy accept/decline/off : Forces opponent to accept diplomatic proposal

invulnerable_general charactername : General is invulnerable in combat

date year : Changes date

kill_character charactername : Kills selected character

season summer/winter : changes season

capture_settlement settlementname : Captures settlement