Dark Dimensions is the first Ultimate quest on RuneScape, higher than Grandmaster is Ultimate and is the hardest quest on RuneScape so far, in this quest you will have to be prepared for the most hardest battle ever! This does not count for the quest cape, but whoever does it earns a title: Grandmaster. The reward is also amazing, the wealth of the reward is 65,700,000. and it can help you defeat the biggest bosses.