As you progress in the game play you can earn new tools, artefacts, skins that will help you on your journey. Each of these items are digitally scarce and can be traded, sold, or bought for an internal currency. The main innovation that crypto has brought to gaming is:

• Digital scarcity - tradable items existed before but weren't verifiably scarce.
• Internal mechanism of exchange (currency)
• Portability - taking nfts outside the game

Tokens are used for:

Toll - a minimum amount is required to play (ie through being a character or

Currency - buying new skins, land, tools, etc.

Voting - community can vote on change proposals

Crypto games run on a proprietary blockchain or adopt a blockchain platform, Ethereum being the most popular. In light of transaction costs many interactions happen off chain and only the aggregate of the transactions are registered as a transaction in the blockchain.

https://changelly.com/blog/bes...

As a rule, all objects in the games are represented in the form of these NFT tokens. You can learn more about them in a corresponding article. When players find, win, or accumulate these items during the game, they can exchange them with other players on the digital markets for various NFTs or sell them for cryptocurrency.