Aptos Unity SDK is a C# library for building Web3 applications and games on the Aptos blockchain using the Unity engine.
The Aptos Unity SDK is a developer toolkit designed to enable building Web3 applications and games on the Aptos blockchain using the Unity game engine. It provides a comprehensive C# library that integrates with the Aptos blockchain, allowing developers to interact with blockchain features such as transaction building, signing, submission, and querying smart contracts directly within Unity projects. The SDK supports the .NET Standard 2.1 framework and is currently in beta, reflecting ongoing development and community feedback.
Key features include support for Binary Canonical Serialization (BCS) encoding and decoding, multiple signing methods including Ed25519, SingleKey, MultiKey, and keyless signers, and abstractions over Aptos Fullnode and Indexer APIs. This enables developers to build complex blockchain interactions such as token transfers, contract calls, and transaction monitoring with ease. The SDK also supports Aptos Names (ANS) for address resolution, enhancing usability in decentralized applications.
Installation is flexible, with options to add the SDK via Unity Package Manager using a Git URL, import a pre-built Unity package, or soon via the Unity Asset Store. Developers can quickly initialize the Aptos client, create accounts, build and sign transactions, and query on-chain data using simple C# code examples provided in the documentation. This makes it suitable for game studios and Web3 developers looking to integrate blockchain features into Unity-based projects without deep blockchain expertise.
Aptos differentiates itself with its focus on parallel execution, low gas and storage fees, and advanced tooling such as a CLI and VSCode extension, which complement the Unity SDK. The platform’s emphasis on keyless authentication and on-chain randomness also provides unique capabilities for secure and interactive Web3 experiences. Developers can get started by following the comprehensive guides and examples on the official Aptos developer site and GitHub repository.
Developers building Web3 games and applications in Unity face challenges integrating blockchain interactions such as transaction management, signing, and querying on-chain data. Existing tools often lack native support for Unity or require complex setups that slow development.
Efficient encoding and decoding of Aptos blockchain data formats.
Simplifies interaction with Aptos blockchain nodes and data indexing services.
Enables human-readable address resolution within Unity applications.
Game developers use the SDK to integrate Aptos blockchain features such as NFT ownership, in-game currency transactions, and on-chain event tracking directly into Unity games.
DeFi developers leverage the SDK to build Unity-based frontends that interact with smart contracts for token transfers, staking, and transaction monitoring.
Developers build NFT platforms and wallet integrations within Unity apps, utilizing the SDK’s transaction and account management features.
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| Price (Monthly) | Free |
| Price (Annual) | Free |
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| Support | Community support via Discord and GitHub |
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The Aptos Unity SDK documentation provides detailed installation instructions, usage examples, and guides for integrating Aptos blockchain features into Unity projects. The GitHub repository hosts the SDK source code, release packages, and issue tracking for community contributions and support.
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