Learn about Chromia, a high-performance blockchain application platform in three minutes


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Chromia’s relational database blockchain architecture allows DApps to operate without a centralized server. Information, logic, and player progress in the game world will be stored in Chromia in real time.

Written by: Chromia Community

Quick facts

  • My Neighbor Alice (MNA) is an upcoming open virtual world game. The game uses blockchain as the basic framework and combines NFT to represent the land, objects, and player avatars and identities in the game.

  • The Chromia blockchain will serve as the technical support for the game background function, and MNA will pay CHR to different network nodes. In this way, any player can participate in the game without owning any cryptocurrency.

  • Many items in the game will be represented by NFTs. These NFTs will use a unique hybrid structure. All NFTs will exist on the Binance Smart Chain or Ethereum and can be traded on these two platforms. The “paired” Chromia original NFT will exist on the Chromia blockchain, storing additional metadata. In this way, these NFTs will be given new uses and functions, beyond the possibilities and uses of any existing tokens themselves.

  • Chromia’s relational database blockchain architecture will allow MNA to operate normally without a centralized server, that is to say, the information, program logic, and player progress in the game world will be stored on the Chromia sidechain in real time.

My Neighbor Alice is a virtual social game that will come out soon, aiming to create a comfortable and casual game environment for ordinary non-blockchain players. MNA’s project concept can be summarized as “not just a game for blockchain players, but also a game that introduces blockchain to tens of thousands of players.” To achieve this goal, you need to make good use of the high-tech development capabilities in the blockchain industry, and this is where Chromia’s advantage lies.

Hybrid architecture

My Neighbor Alice (MNA) is a multiplayer constructive game in which players own their own “land” and carry out activities such as farming, collecting, and trading on the land. Players can customize their image in the game, such as wearing or equipping various additional items.

The uniqueness of MNA is that the game itself does not rely on a centralized server, but is completely attached to the blockchain. Land, in-game items, characters and even additional items on the characters will all be reflected on the blockchain. Some of these items are NFTs (driven by both Ethereum/BSC and Chromia), while Chromia stores information such as game logic, the location and direction of objects, and user inventory.

Features of Chromia

MNA needs to rely on Chromia’s high performance to achieve the normal operation of the game, including:

  1. Flexible transaction fee model
  2. SSO pairing key login
  3. On-chain logic and data storage
  4. Chromia native NFT standard

Flexible transaction fee model

The Chromia sidechain allows DApp developers to filter from various charging models. MNA will pay CHR tokens to reserve storage and computing power on the Chromia network, allowing its players to participate in the game without holding any cryptocurrency. These players will have a Chromia cryptocurrency wallet that will seamlessly connect to the user interface. However, players do not have to acquire CHR tokens or any other tokens as a condition of entering the game. If the player decides not to buy or sell the NFT obtained in the game, the player can even play the game without knowing how the cryptocurrency works.

Chromia driver pairing key login

Players can use the Chromia wallet pairing key to log in to the game. This game login method is non-hosted, and the player’s login information will not be stored on the server. (If the player cannot fully accept the non-custodial technology, they can still choose to log in in the traditional “custodial” way, that is, use a username and password).

On-chain logic and data storage

Chromia’s relational database architecture makes it more efficient to store and process data than other blockchains. Because of this, the procedural logic for generating land plots and managing the rules of the game can be saved on the blockchain. In addition, information about the virtual eternal world, such as the location and direction of items, will also be stored on the chain. This means that MNA does not need to rely on a central server to continuously provide services to players. As long as MNA continues to pay CHR tokens to various network nodes, the game will continue to operate.

Chromia native NFT standard

Chromia Originals is an advanced NFT standard native to the Chromia blockchain, which integrates more advanced metadata sets, as well as new features and flexibility. Originals has six key attributes, including ownership, interchangeability, composability, interchangeability, programmability, and portability.

This set of attributes gives NFT several breakthrough development possibilities. Taking MNA as the theme for a simple example, a rare NFT item can be used five times. The player can use it once, and then sell it to another player, and there are four remaining opportunities to use this item. Therefore, the value of this item on the open market will be much higher than other items of the same type that have only one opportunity to use.

Hybrid NFT architecture

Compared with Ethereum, BSC has obvious advantages in speed and affordability of transaction costs, so it has recently been adopted on a larger scale. The ERC-721 NFT standard is widely used on Ethereum, and after this standard is transplanted to the Binance Smart Chain, it becomes the BEP-721 standard. The 721 standard applies to simple operations such as buying, selling, and breeding. However, due to the limited amount of metadata, the 721 standard cannot be applied to more complex operations.

By deploying a unique hybrid architecture, MNA can obtain the liquidity and user base of Ethereum and Binance Smart Chain for its NFT market outside the game, while taking full advantage of the advanced features of Chromia Originals in the game.

Since the backend of MNA runs on Chromia, events that occur in the game can directly change the NFT data stored on its blockchain, and these data are in turn associated with the “pairing” NFT tokens that exist on Ethereum or BSC .

Chromia’s future outlook

As a decentralized application, MNA is one of the first cases where Chromia is widely used as a second-tier back-end program. More meaningfully, Chromia is not only added for scalability, but also because it provides advanced functions that other blockchains cannot achieve. Chromia Originals’ NFT standard, relational blockchain architecture, and flexible charging model can all shape MNA into a popular terminal product, bringing more independent control rights to different players.

Disclaimer: As a blockchain information platform, the articles published on this site only represent the author’s personal views, and have nothing to do with the position of ChainNews. The information, opinions, etc. in the article are for reference only, and are not intended as or regarded as actual investment advice.

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