Full game cheats
These are the cheats for the full version. Just start the game with the 
parameter /CHEATS=1 and press [~] while in the game to open the console. Now 
type in the following codes:

Code - Result:
sys cheats 963 - Activate cheat mode
cheat lord - God mode
cheat sucide - Suicide
cheat teleport - Teleport
cheat tp - Teleport

Cheats for the demo version 
Just start the demo with the parameter /CHEATS=1 and press [~] while in the 
game to open the console. Now type in the following codes:

SYS CHEATS=1 - Activate cheat mode
CHEAT GOD - God mode
CHEAT RARE - Get rare items
CHEAT upgrade - All upgrades for the current character
CHEAT SETGOLD # - Set gold to #
CHEAT ADDGOLD=# - Add # gold
CHEAT ADDEXP=# - Add # EP
CHEAT SETLEVEL=# - Set level for current character (max 255)
CHEAT SETHEROLEVEL=# - Set level for current hero (max 255)
CHEAT FOGOFWAR - No fog of war
CHEAT DAMAGE - Set health to 1
CHEAT OBSERVER - ?
SYS FPS - Show Frame rate

Enable gore:
Note: This procedure involves editing a game file; create a backup copy of the file 
before proceeding. Use a text editor to edit the "settings.cfg" file in the game 
folder. Change the value of the "Violence" line to "1" instead of "2".

Easy experience, items, and money: 
When you first start the game with any character, you are given a rune, weapon 
and armor. Pick all these up, then choose the "Export" option from the menu. Start 
a new game with the "Import" option. Import your saved character and you will 
start again at the beginning of the game. Not only will you still be holding all the 
items you picked up previously, but you can collect them all again. This can be 
repeated as many times as desired. The runes can be exchanged for combos, and 
the armor can be sold. This is best done with the Gladiator character; if you fight 
in the arena and battle Julius the Gladiator Master, you receive experience points 
as well as gold and various other items. "Export" and "Import" after you have 
killed him and his guards and repeat to get experience each time.