Gems allow you to purchase card packs, unlock characters, and acquire structure decks. The grind for free gems is slow, and real-money packs are expensive. This economic tension has led players down a dark, rabbit hole of internet searches:
While "Unlimited Gem" mods for Yu-Gi-Oh! Duel Links are often advertised, it is important to note that since player data—including Gem counts—is stored on Konami’s secure servers
This recurring event is one of the most lucrative periods for gem earners, often offering thousands for climbing the tiers. 5. Hidden "Trash Can" Gems
: This is the most consistent source of large gem amounts. Leveling a single character to their maximum level can yield thousands of gems.
Often, instead of banning you instantly, Konami will put you in a "cheater pool." You will only face other modders (who will disconnect and cause you to lose), and your drop rates for rare cards will drop to zero.