Here is the full list of all 22 Realm Royale Reforged achievements.
Eliminate an enemy player as an Engineer.
Get 50 eliminations as an Engineer.
Eliminate an enemy player with your dagger.
Get 50 eliminations as a Mage.
Get 50 eliminations as a Hunter.
Eliminate more than 10 players in a single match.
Get 50 eliminations as an Assassin.
Get a Legendary Item in every slot.
Get 50 eliminations as a Warrior.
Get 10 Crown Royales.
Forge 100 Items.
Get a Crown Royales with 3 different classes.
Eliminate an enemy player as a Mage.
Loot Armor Potions 20 times.
Win a match as a team of 4 without losing a single player.
Chicken a player from more than 800 feet away.
Get a Crown Royale.
Eliminate an enemy player as a Warrior.
Forge your first Legendary Weapon.
Eliminate an enemy player as an Assassin.
Survive after becoming a chicken.
Eliminate an enemy player as a Hunter.