How to join Web 3.0 ?
quick guide for those who want to understand web 3.0 and start playing MainCard
What are blockchain and NFT?
A blockchain is a decentralized, distributed, and oftentimes public, digital ledger consisting of records called blocks. It is used to record transactions across many computers so that any involved block cannot be altered retroactively, without the alteration of all subsequent blocks.

In simpler language, blockchains are digital records that ensure your digital assets (i.e. NFTs) have provable scarcity (fixed and limited supply), provenance, true ownership, and complete freedom of movement - e.g. thanks to the blockchain, you can transfer assets across platforms, allowing you to own digital things similar to how you own physical items.
Thanks to the blockchain, your Maincard cards are truly yours. With an NFT from Maincard, you can use it in Maincard competitions, keep it as a collectible, transfer it to another platform, sell it, trade it, play it in another game, and create your own game where you can use it, etc.

In traditional digital games, you collect and use in-game items but you don't own them. With NFTs, you actually own your digital items, similar to how you own things in the physical world.

A cryptocurrency is a digital asset designed to work as a medium of exchange wherein individual coin ownership records are stored in a ledger existing in a form of a computerized database using strong cryptography to secure transaction records, control the creation of additional coins, and verify the transfer of coin ownership.

In simpler terms, cryptocurrency is often used to purchase and transfer ownership of NFTs.
What is the benefit?
What is cryptocurrency?
A cryptocurrency wallet, often called a crypto wallet, is similar to a digital wallet or bank account for your digital money, known as cryptocurrencies. These wallets allow you to safely store, send, and receive cryptocurrencies like Bitcoin, Ethereum, and many others. They make managing and using your digital money easy and secure.

Crypto wallets work by using unique codes, called public and private keys. The public key is like your bank account number, which you share with others so they can send you digital money. The private key is like a secret password that only you should know. It's used to access and manage your cryptocurrencies. It's essential to keep your private key safe, as anyone who has access to it can control your digital money.

What is a Crypto wallet?
How do I create a Crypto wallet?
It’s important that you do not save any passwords digitally as these can be accessible to hackers and weaken your wallet security.
After creating a password, you will need to enter your password to access your wallet each time.
Select “Create a Wallet” and create a password.
“Get Started” and you’ll be taken to a page presenting these two options (see below).
Navigate to the extension area of your browser and find the Metamask option
Be sure to check that you’re currently using a browser that supports Metamask.
Download and install Metamask.
A network is a group of computers connected together. They share information and work together to complete tasks. In the world of Web 3, networks are used to power things like cryptocurrencies and decentralized applications.

A Polygon network is a special kind of network. It's designed to make it easier and cheaper to use a popular cryptocurrency called Ethereum. Ethereum is great, but sometimes it can be slow and expensive to use. Polygon helps fix this problem.

The Polygon network is different from other networks because it works with Ethereum. It's like a helper network that makes Ethereum faster and cheaper. This is important for people who want to build and use decentralized applications without spending too much money on fees or waiting too long for things to happen.

What is Polygon?
Gas fees are payments made to cover the cost of the computing energy required to process transactions on the Polygon blockchain. Here is a more technical explanation of gas fees.

The busier the network, the higher the gas fees will be to process transactions. This supply-and-demand mechanism enables miners to prioritize transactions that pay more, compelling other users to pay more to have their transactions processed more quickly and efficiently. Users of Polygon can also choose to pay more for faster transactions.
Gas and mining fees
You can see how busy the network is
In the near future, Maincard will take over the gas costs and you will not have to pay for it.
Web 3 games are safer than many classic games. There are several reasons for this:
Maincard has all these parameters. Our game is built on the blockchain using smart contacts and we have a large community of players (Discord, Telegram, Twitter).

Is it safe to play a game in Web 3?

Reason 1
One reason is that Web 3 games are often built on blockchain technology, which is a highly secure and transparent technology. Transactions and data are recorded on a decentralized ledger, which makes it difficult for any one person or group to tamper with or manipulate the data. This provides a higher level of security and transparency compared to traditional financial systems
Another factor
Another factor that can contribute to the safety of Web 3 games is the use of smart contracts. These are self-executing contracts with the terms of the agreement between buyer and seller being directly written into code. This reduces the need for intermediaries and provides greater transparency and security in transactions.

In addition
In addition, many Web 3 games have a strong community of supporters and users. These communities can help to provide support and guidance for new users and can help to identify and address any potential security risks.

Are there any risks associated with playing a play-to-earn game in Web 3?
The main risk that exists when Web 3 games are to lose access to your own wallet. In no case do not transfer your wallet data to third parties. It is important for you to remember and write down the password from your wallet, preferably in a place inaccessible to other people (and not digital). If you lose your wallet password, you will not be able to recover it and will lose all the data stored on it.

If you encounter any difficulties, immediately contact the support service. Our support service