Debug On: Enable debug mode

Debug Off: Disable debug mode

Iamgod: God mode

Iamgoddes: God mode for the final stage

Smoghead: Full health

Foghack: Removes the fog

Floy: No clip mode (fly mode), to disable the floy cheat type drop and floy again

Giants: Kills all enemys close to you

Opensezme: Opens all doors

Gimme Fire: Gives Arokh his fire breath weapons (Rynn must be mounted on Arokh in order to work)

Gimme Ice: Gives Arokh his ice breath weapons (Rynn must be mounted on Arokh in order to work)

Gimme Magma: Gives Arokh his magma breath weapons (Rynn must be mounted on Arokh in order to work)

Gimme Poison: Gives Arokh his poison gas breath weapons (Rynn must be mounted on Arokh in order to work)

Gimme Lightning: Gives Arokh his lightning breath weapons (Rynn must be mounted on Arokh in order to work)

Gimme House Key: Gives keys to open all doors

Gimme Sting: Gives the sting

Gimme Club: Gives the club

Gimme Scimitar: Gives the scimitar

Gimme Speed Scimitar: Gives the speed scimitar

Gimme Short Sword: Gives the short sword

Gimme Mithril Short Sword: Gives the mithril short sword

Gimme Battle Axe: Gives the battle axe

Gimme Iron Battle Axe: Gives the iron battle axe

Gimme Duncan's Battle Axe Gives the duncan's battle axe

Gimme Lightning Axe: Gives the lightning axe

Gimme Vykruta's Axe: Gives the vykruta's axe

Gimme Mithril Axe: Gives the mithril axe

Gimme Axe Of The Order: Gives the axe of the order

Gimme Mace: Gives the mace

Gimme Mace Of Hand: Gives the mace of hand

Gimme Death Mace: Gives the death mace

Gimme Battle Hammer: Gives the battle hammer

Gimme Grungle's Hammer: Gives grungle's hammer

Gimme Iron Hammer: Gives the iron hammer

Gimme Long Sword: Gives the long sword

Gimme Mithril Long Sword: Gives the mithril long sword

Gimme Great Sword: Gives the great sword

Gimme Giant Slayer: Gives the giant slayer

Gimme Mithril Great Sword: Gives the mithril great sword

Gimme Sword Of Flame: Gives the sword of flame

Gimme Flaming Sword: Gives the flaming sword

Gimme Mourn Bringer: Gives the mourn bringer

Gimme Dark Scimitar: Gives the dark scimitar

Gimme The Cleaver: Gives the the cleaver

Gimme Sword Of Ice: Gives the sword of ice

Gimme Runeblade: Gives the runeblade

Gimme Energy Bow: Gives the energy bow

Gimme Long Bow: Gives the long bow

Gimme Speed Bow: Gives the speed bow

Gimme Heavy Bow: Gives the heavy bow

Gimme Arrows: Gives the arrows for your bow

Gimme Poison Arrows: Gives the poision arrows for your bow

Gimme Ice Arrows: Gives the ice arrows for your bow

Gimme Fire Arrows: Gives the fire arrows for your bow

Gimme Explosive Arrows: Gives the explosive arrows for your bow

Gimme Magic Arrows: Gives the magic arrows for your bow

Gimme Dragon Armor: Gives the dragon armor

Gimme Chain Mail: Gives the chain mail

Gimme Plate Mail: Gives the plate mail

Gimme Banded Mail: Gives the banded mail

Gimme Scale Mail: Gives the scale mail

Gimme Mine Key: Gives the mine key

Gimme Lane Rune: Gives the lava rune

Gimme Storage Rune: Gives the storage rune

Gimme Elemental Amulet: Gives the elemental amulet

Gimme Barrier Rune: Gives the barrier rune

Gimme Rift Crystal: Gives the rift crystal

Gimme Rune Of Stone: Gives the rune of stone

Gimme Atimar's Book: Gives the atimar's book

eatme - makes Rynn bigger. Can be typed in multiple times.

drinkme - makes Rynn smaller. Can be typed in multiple times.

hud - hides or displays Heads-Up-Display (actually just health and inventory, inventory won't work if HUD is disabled).

tele X Y Z - takes away control from Rynn and switches camera to free mode and positions it on specified map coordinates.

teleport - just takes the camera way up in the blackness, you can get back using "floy".

goto X Z Y - moves camera to specified map coordinates. You must already be in flying mode for it to work (floy). Don't know what's the point of it since "tele" works well for that purpose. And yes, it's XZY, not XYZ.

lights! - creates some sort of dynamic light entity and binds it to Rynn so it looks like she's emitting light.

mr_clean - kills nearby enemies (unlike "giants" cheat, it doesn't gib them).

bye - commits suicide.

kurt - commits suicide.

nnyr - commits suicide and also gibs Rynn into pieces (if you're riding Arokh, gibs and blood come out of Rynn but her model doesn't disappear).

mcon - unknown

mcoff - unknown

identity - not sure, positions Rynn or Arokh on some specific point on the map.

panshot - makes some sort of special screenshot in game installation directory and names it PANO-X.TGA X is a number. 

exit - quits the game to desktop. Doesn't require developer mode and it also works in multiplayer. If this was known in the times multiplayer was active, pardon me, I haven't been around in those times.