Here is the full list of all 20 Royale Archer VR achievements.
Complete the tutorial
Complete the first stage
Shoot all the animals hiding in the title screen
Destroy all the bottles and glasses in the lobby
Complete the stage 10 in less than 2 minutes
Destroy 20 enemy units with traps and magic in one stage
Stage play time exceeds 10 minutes
5 critical hits in a row
Unused until mana is 1000
Complete the game with 100% arrow accuracy
Use 20 warps in a stage
Hit 10 fire arrows in a stage
Hit 10 Ice arrows in a stage
Hit 10 electric arrows in a stage
Sniper the deer hiding in stage 5
Complete stage 20
Using deck practice
Hit the bullseye of the target
Battle with 10 units
Battle with 5 traps installed