Grandmaster achievements are for players with ultimate experience and end-game gear.
There are 9 total achievements for this category.
| Achievement | Description |
|---|---|
| Arcade Master II | Complete the Extreme Hell Arcade once |
| Slayer Superior Codex | Equip a Slayer Superior Codex |
| Bow of Awakening (i) | Equip a Bow of Awakening (i) |
| Staff of Awakening (i) | Equip a Staff of Awakening (i) |
| Slayer Master Bow (i) | Equip a Slayer Master Bow (i) |
| Slayer Master Staff (i) | Equip a Slayer Master Staff (i) |
| Nipper Demon (b) | Summon a Nipper Demon (b) |
| Make it Rain IV | Spend 1000B (1T) in Fountain of Fortune |
| Karma Food IV | Sacrifice 100,000 Karma Food to the Karma Statue |
