Gems will be an ERC-20 token issued on Ethereum. It will be tradeable by anyone in exchange for ETH, most likely being listed on an Automated Market Maker such as Uniswap.
All blockchain assets (items, heroes, pets) in the game are ERC-721 tokens. These will be issued on Immutable X, which is an exchange infrastructure which features:
Zero gas costs for peer to peer trading.
No custodial risk; users keep their private keys.
Handles up to 9,000 transactions per second.
Not a centralized sidechain.
Supports ERC-20 and ERC-721
Instant settlement, no reverts.
The Guild of Guardians Game is a mobile game that will be available via the Apple and Google Appstores. It is built in Unity and directly playable on any supported mobile phone.