300 Heroes Wikia


Gem Synthesis Rate Up 2.png

Event Time

  • Start: 27 September 2020
  • End: 8 October 2020


Task A (Unlimited Time Quest): During the event, the success rate when upgrading 4 gems of the same attributes at level 5 or more is increased from 75% to 100%.

  • Note: Players need to use only GEM OF THE SAME ATTRIBUTES!!

Task B (Unlimited Time Quest): During the event, every 50 Diamonds on a single top-up grant all of the following rewards:

  • Item Gold.png (Gold Coin) x 2000