What's GUM?
GUM is in-game-money that you can use in My Crypto Heroes. This is different from the Crypto-Currency. You can use GUM to buy Hero CE and Assets from Trade or Shop.
How to Buy
You can buy GUM by ETH from Shop. In some wallets, you can GUM by your credit card.
[2022.02.11 added] GUM is now treated as an on-chain token. It is in the wallet address of everyone in the MCH-verse chain.
Explorer: https://explorer.oasys.mycryptoheroes.net/
Token address: 0xa9155F8832203AB32C4Cac6597E5E61b30d34741