Hardcore mode is a Game Mode that can be chosen when creating a new character. There is no way to change a character from one game mode to another after creation. Hardcore characters are deleted upon Death and also have several penalties that apply while playing:
- Hitpoints do not passively regenerate
- The Bank is limited to a max of 80 slots (The bank only has 12 slots at the beginning of the game, just like normal, but no more than 80 total can be acquired)
- The Combat Triangle penalties for using the combat style that is weak against the current enemy are increased.