Currency

Currency is a main feature that allows you to buy chests, troops, and more. Its main purpose is its usefulness in the Shop.

Gold/Coins
Gold (or coins, whatever your preference is) is the most common currency you can get in the game, getting at least 5,000 every Common Chest. Its sole purpose is to buy the two side-troops in the shop. The shop harbors infinite troops, so if you have the money, you can buy the troops you've been waiting for in bulk.

Gems
Gems are a much rarer currency, only ever obtained in Event missions and chests. It has a much more valuable purpose than Gold, allowing you to buy the featured troop in the shop and chests in every type.

Blockite
Main article: Blockite

Robux
Robux is the main currency of Roblox, and its no surprise that you can use it in the game. You can buy the VIP for a handful of Robux; Chests if you don't have gems; and more!

Trivia

 * To avoid P2W (pay-to-win) players to absolutely dominate the game, buying Gold and Gems is extremely lopsided.