Press ~ during game play and type DebugMode 1 (case sensitive) to enable cheat mode. Then, enter GiveXP (without a value after it) at the console window. The game will continue to level your character up until you reach maximum level.
Extra gore and critical hit chunks
Use a text editor such as notepad to edit the "nwnplayer.ini" file in the game folder and look under the "[Game Options]" heading. Change the "Memory Level=1" line to change it to "Memory Level=2" and "Memory Access=1" to "Memory Access=2".
Maximum gold
Press ~ during game play and type DebugMode 1 (case sensitive) to enable cheat mode. Then, enter dm_givegold (without a value after it) at the console window. The game will give you the maximum amount of gp you can hold (over 8,000,000).
One hit kills
Press ~ during game play and type DebugMode 1 (case sensitive) to enable cheat mode. Move the pointer over your target, then hold the Left Mouse Button and press Y. Note: This also can be used to bash doors, chests, and other containers.
Start with desired, skills, attributes, and feats
Press ~ during game play and type DebugMode 1 (case sensitive) to enable cheat mode. Enable the dm_giveXP 803500 cheat code. Choose your classes, attributes, skills, and feats. Enable the dm_giveXP -803500 cheat code. Your level will be reduced to 1 but you will have the skills and attributes there. Repeat this as desired.
Teleport
Press ~ during game play and type DebugMode 1 (case sensitive) to enable cheat mode. Move the pointer to your desired destination, then hold the Left Mouse Button and press [Keypad Plus].