Here is the full list of all 37 Royal Crown achievements.
Open 100 Chests.
Eliminate 10 Enemies in 1 Game.
Open 5 Supply Chests.
Eliminate 10 Enemies.
Win for the First Time.
Get in the Top 5 in Solo Mode.
Eliminate 1 Enemy.
Eliminate 5 Enemies in 1 Game.
Play 10 Games.
Play 100 Games.
Play 500 Games.
Play 1,000 Games.
Achieve 1st Place 10 times.
Achieve 1st Place 100 times.
Get in the Top 3 in Squad Mode.
Eliminate 100 Enemies.
Eliminate 1,000 Enemies.
Open 50 Supply Chests.
Gather 50 Times.
Gather 500 Times.
Gather 5,000 Times.
Log 50 Trees.
Log 500 Trees.
Log 5,000 Trees.
Mine 50 Times.
Mine 500 Times.
Mine 5,000 Times.
Give Team Member First Aid.
Revive Team Member.
Hunt 50 Monsters.
Hunt 500 Monsters.
Hunt 5,000 Monsters.
Open 1,000 Chests.
Open 10,000 Chests.
Craft 50 Times.
Craft 500 Times.
Craft 5,000 Times.