To use cheats, you must configure your game to allow cheats: After opening up the game launcher, before you click Play Mount&Blade, go to Configure. From there, go to the Game tab and check the box next to Enable Cheats.

Battle Cheats
Ctrl+H Heals your character fully.
Ctrl+Shift+H Refills your horse's health.
Ctrl+F4 Delivers blunt damage to a random enemy (doesn't hurt horses).
Ctrl+alt+F4 Delivers blunt damage to all enemies.
Ctrl+F6 Delivers blunt damage to a random ally.
Ctrl+Shift+F6 Delivers blunt damage to all allies.
Ctrl+F5 AI takes control of the player character. You can command yourself with the party command keys.
Ctrl+F3 Delivers blunt damage to the player character.
Ctrl+F9 Toggles slow motion.
Ctrl+F11 Freezes time.

Non-Battle Cheats

Ctrl+X Gives you 1000 experience points while on the character screen.
Ctrl+X Gives a selected soldier 100 experience points while on the party screen (retail version only).
Ctrl+X Gives 1000 denars while on the inventory screen (retail version only).
Ctrl+W Gives you 10 points to each Weapon Proficiency while on the character screen.
Ctrl+Left Click Teleports the party to the cursor (when on the map screen).
Ctrl+T Lets you see all parties and tracks on the map screen.
Ctrl+L Automatic level up. Warning: Do not level past 62.

You can also use the non-battle cheats on your followers to level them up.


Pressing Ctrl+~ (tilde, next to the number row) opens the console. Entering "cheatmenu" will activate the cheatmenu, which allows for a wide variety of debug cheats (for those whose where tilde doesn’t work press ctrl+¬ [below escape]).
To deactivate the cheatmenu, bring the console back up and enter "nocheatmenu".



Remember, these just changing the configuration to allowing cheats prevents you from gaining achievements.
Enjoy and I hope you enjoy these.