Here is the full list of all 20 Yu-Gi-Oh! Duel Links achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Earn all achievements.
Reach Stage 50.
Collect 100 Prismatic Cards.
Win 100 PvP matches.
Destroy a total of 1000 monsters.
Win 5 Duels.
Win 30 Duels.
Win 50 Duels.
Win 100 Duels.
Win 300 Duels.
Reach Stage 10.
Reach Stage 20.
Inflict a total of 1 million points of damage.
Collect 10 Prismatic Cards.
Win 30 PvP matches.
Collect 300 types of cards.
Destroy a total of 100 monsters.
Successfully Summon a total of 100 monsters.
Successfully Summon a total of 1000 monsters.
Reach Stage 3.