Stellar Community Fund

By Stellar Unity Developer Kit

Stellar Unity Developer Kit

SCF #40

$47.0K

Build

Awarded

This Unity-based developer toolkit allows game and app developers to easily integrate Soroban smart contracts and Stellar blockchain features directly into their Unity projects.

Products & Services

This Unity Toolkit provides a streamlined SDK and example project suite for Unity developers. It will include:

Unity SDK for Soroban: A C# API wrapper to interact with Soroban contracts, send transactions, and read contract states.
Cross-Platform Support: Compatibility with desktop and WebGL Unity builds
Contract type generator for Rust and C#
XDR serializer and deserializer
Contract data and event indexer
Wallet Integration Module: Support for Stellar wallets and developer tools for user login, transaction signing, and token management.
Example Templates: Demo scenes for use cases like in-game NFT minting, token-gated content, and on-chain marketplaces.
Developer Documentation: Step-by-step guides, sample contracts, and integration examples hosted on GitHub.

This toolkit lowers the barrier to entry for developers and allows game and app creators to focus on gameplay and UX- not backend blockchain logic.

Soroban

Yes

Requested Budget

$47.0K

Success Criteria

Success for us is destroying barriers for developers to jump in head first into the Stellar ecosystem- then seeing those developers thrive.

Go-To-Market Plan

Our go-to-market plan is built to convert Unity developers → Soroban developers → onchain game deployments; as we plan to build a full gaming ecosystem on Stellar.

Early-Access / Design Partner Phase (Months 1-2)
- Release a private preview to 3–5 game studios already building in web3 (we are already in conversations with two).
- Collect feedback while shipping updates weekly.
- Produce short demo videos + developer walkthroughs to validate usability.
Public Launch (Month 3)
- Launch the SDK as an open-source package on GitHub + Unity Asset Store.
- Publish a full “Build Your First Soroban Game in Unity” tutorial + sample project.
- Host a workshop + live coding session at Stellar Dev Discord and relevant game dev communities.
- Submit Unity package to “Verified Solutions” and “Blockchain SDK” category listings.
Growth + Adoption (Months 4-6)
- Partner with SDF DevRel to integrate SDK into hackathon starter kits (Sorobanathon, SCF, etc.).
- Sponsor 1–2 game-focused bounties using the toolkit to seed ecosystem projects.
- Publish 3 technical case studies showing how devs shipped Unity games using Soroban for in-game assets, wallets, and real-time oracle data.
- Target Unity creators via community channels (Reddit r/Unity3D, itch.io, dev YouTube channels).

Total Requested: $47,000

Breakdown:

$25,000 — Engineering (SDK development, contract testing)
$10,000 — Documentation, tutorials, and community support materials
$7,000 — Design, UI, and demo game creation
$5,000 — Project management, testing, hosting, and release costs

Traction Evidence

We are wrapping up development of the first onchain strategy (not card) game on Stellar to be released November 21, 2025, and we used this experience with the community and back end development to begin creating this SDK that is BADLY needed in the Stellar ecosystem.

Tranche 1 (Deliverable Roadmap) - MVP

Foundation

Core SDK structure (C# Soroban client
Connection to testnet contracts
Basic transaction + read/write functionality

Internal demo project for proof of concept

Deliverable: GitHub alpha release + demo video

Budget - $18,000
Breakdown

$10,000 — Engineering (SDK development, contract testing)
$3,000 — Documentation, tutorials, and community support materials
$3,000 — Design, UI, and demo game creation
$2,000 — Project management, testing, hosting, and release costs

Estimated completion date: February 1, 2026

Tranche 2 (Deliverable Roadmap) - Testnet

Wallet & Templates

Wallet connection + transaction signing
NFT minting and token management examples

Budget - $17,000
Breakdown

$10,000 — Engineering (SDK development, contract testing)
$3,000 — Documentation, tutorials, and community support materials
$2,000 — Design, UI, and demo game creation
$2,000 — Project management, testing, hosting, and release costs

Estimated completion date: April 1, 2026

Tranche 3 (Deliverable Roadmap) - Mainnet

Documentation & Launch

Public documentation site and tutorials
Community outreach via Stellar/Soroban dev channel
Toolkit published on Unity Asset Store (free)

Deliverable: Public SDK v1.0 launch + outreach report

Example game template: in-game marketplace or quest NFT demo
Deliverable: Beta release + Unity sample scenes

Budget - $12,000
Breakdown

$5,000 — Engineering (SDK development, contract testing)
$4,000 — Documentation, tutorials, and community support materials
$2,000 — Design, UI, and demo game creation
$1,000 — Project management, testing, hosting, and release costs

Estimated completion date: May 31, 2026

Team

The Unity SDK is being developed by Scrying Stone, a web3 company. Scrying Stone was founded by two former-SDF team members. It is a team of builders and artists with over 30+ years of combined blockchain and crypto experience.

Spintax (aka Dune): Marketing and community expert and project director

Nev: Lead art and design director

Mono: Lead game developer

Aegius: Sound and Production

Rylen: UI/UX Design

Step0n: Smart contract developer

Robek: On-chain collectible pioneer and creative director

Projects we have worked on:
Token.gallery - 2017 proto-digital asset marketplace and 2021 art marketplace on Ubiq

Lexitoken - 2017 proto-wrapping mechanism

Sealed.art - 2023 digital 1/1 nft marketplace

Eth.co - 2022 - 2024 Digital Visual Wallet + Community

Weeb3dao - a scholarship and collector DAO focused on artist onboarding