300 Heroes Wikia

Gem Synthesis Rate Up (2021.04.29).jpg

Event Time

  • Start: 29 April 2021
  • End: 9 May 2021


Task A (Unlimited Time Quest): During the event time, 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


Event Announcement: https://activity.jumpw.com/300hero/labourday/main.jsp