In-game Currency

Gold coins
Gold coins are required to upgrade hero skills, craft equipment, purchase items at the Market or on the Merchant Ship, and buy certain kinds of chests at the Chest Workshop. You can buy items at the Arena store with money earned in battle.

How to get money:
 * Complete daily tasks and get coins
 * Defeat bosses and earn coins by dealing damage to them
 * Get bars in Mines at the Time Portal
 * Get bars by defeating bosses on Sentinel Island
 * Defeat your opponents in Expeditions and get coins from chests
 * Send your heroes to the Alliance as mercenaries and get coins every hour
 * Trade gems for treasure chests
 * Sell items you don't need
 * Open chests in the Arena
 * Get bars as a Login reward

Gems
You can use gems to open chests faster, buy quantums, restore your energy, increase your heroes' damage, and restore your heroes' health on an Expedition.

How to get gems:
 * Complete daily tasks and get gems in chests
 * Complete Campaign chapters and get gems in treasure chests
 * Get them in chests for winning Arena battles
 * Get bonus gem packs at a bargain price
 * Get gems as a Login reward
 * Get gems in Expedition chests after defeating all the opponents
 * Get gems in chests for defeating bosses
 * Fight alongside fellow alliance members in raids and get gems in chests
 * Get a reward for watching ads
 * Get a VIP level

Arena coins
This currency is used to buy items in the Arena Store. It is used to buy hero quantums and equipment.

How to get Arena coins:
 * In chests for winning Arena battles

Expedition coins
This currency is for the Expedition Store. It is used to buy hero quantums and equipment.

How to get Expedition coins:
 * In chests for winning Expedition levels