First players to reach 99 in each skill:
 Attack | Cats Go Meow | July 2, 2019 | See rest |
 Defence | Cats Go Meow | July 2, 2019 | See rest |
 Strength | Cats Go Meow | July 2, 2019 | See rest |
 Constitution | Cats Go Meow | July 2, 2019 | See rest |
 Ranged | TBD | See rest | |
 Prayer | Cats Go Meow | July 2, 2019 | See rest |
 Magic | Cats Go Meow | July 2, 2019 | See rest |
 Cooking | Cats Go Meow | July 2, 2019 | See rest |
 Woodcutting | Cats Go Meow | July 2, 2019 | See rest |
 Fletching | Cats Go Meow | July 2, 2019 | See rest |
 Fishing | TBD | See rest | |
 Firemaking | Cats Go Meow | July 2, 2019 | See rest |
 Crafting | TBD | See rest | |
 Smithing | TBD | See rest | |
 Mining | TBD | See rest | |
 Herblore | Cats Go Meow | July 2, 2019 | See rest |
 Agility | TBD | See rest | |
 Thieving | TBD | See rest | |
 Slayer | Cats Go Meow | July 2, 2019 | See rest |
 Farming | TBD | See rest | |
 Runecrafting | Cats Go Meow | July 2, 2019 | See rest |
 Hunter | TBD | See rest | |
 Construction | TBD | See rest | |
 Summoning | Cats Go Meow | July 2, 2019 | See rest |
 Dungeoneering | TBD | See rest | |
 Divination | TBD | See rest | |
 Invention | TBD | See rest | |
 Archaeology | TBD | See rest |
* Keep in mind that data before 2007 is missing, so some achievements may be inaccurate.