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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

EVM Soulbound Token System Design

We architect and implement custom ERC-compliant Soulbound Token (SBT) frameworks for immutable player identity and non-transferable achievement records on Ethereum and EVM L2s, with a focus on gas optimization and seamless game engine integration.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3-native engineers.

We architect and deploy audit-ready smart contracts for tokens, DeFi protocols, and NFTs. Our team specializes in Solidity and Rust, implementing battle-tested patterns from OpenZeppelin and Solmate to ensure security and gas efficiency from day one.

  • Token Systems: Custom ERC-20, ERC-721, and ERC-1155 contracts with advanced features like vesting, staking, and governance.
  • DeFi Protocols: Development of automated market makers (AMMs), lending/borrowing pools, and yield strategies.
  • Enterprise Logic: Complex multi-signature wallets, upgradeable proxy patterns, and cross-chain functionality.
  • Full Lifecycle: From initial design and development through to third-party security audits and mainnet deployment.

We deliver contracts that are secure by design, reducing audit cycles and mitigating the risk of costly exploits.

key-features-cards
ARCHITECTURE & ENGINEERING

Core Technical Capabilities

We deliver production-ready EVM Soulbound Token systems with enterprise-grade security, scalability, and seamless integration. Our focus is on delivering tangible outcomes: faster time-to-market, reduced operational risk, and a superior user experience.

01

Custom SBT Smart Contract Development

We architect and deploy secure, gas-optimized Soulbound Token contracts. Our implementations support ERC-721S, ERC-1155S, and custom standards with features like on-chain attestations, revocation logic, and upgradable storage patterns.

Client Value: Launch a fully audited, custom SBT system in weeks, not months, with built-in compliance and future-proofing.

2-4 weeks
From spec to mainnet
OpenZeppelin
Security Foundation
02

On-Chain & Off-Chain Attestation Systems

Design hybrid attestation models that balance security, cost, and user privacy. We implement verifiable credentials (W3C VC), integrate with attestation stations (EAS), and build custom oracles for real-world data.

Client Value: Create a flexible, interoperable credentialing layer that works for both permissionless ecosystems and regulated enterprise use cases.

< 1 sec
Off-chain verification
EAS Compatible
Industry Standard
03

Gas-Optimized Minting & Management

Engineer batch minting, airdrop mechanisms, and admin tooling that minimize transaction costs and maximize user experience. Our systems handle large-scale distributions without compromising network performance.

Client Value: Execute community airdrops and credential updates at up to 70% lower gas costs, improving user adoption and retention.

70%+
Gas cost reduction
Bulk Operations
Scalable distribution
04

Modular & Upgradable Architecture

Build with a modular design using proxy patterns (Transparent/UUPS) and diamond standards (EIP-2535). This allows for seamless future upgrades, new feature rollouts, and governance integration without disrupting existing token holders.

Client Value: Future-proof your SBT system. Add new functionality or migrate logic with zero downtime and no need for costly user migrations.

Zero Downtime
Contract Upgrades
EIP-2535
Diamond Standard
05

Cross-Chain & Multi-Protocol Integration

Deploy interoperable SBT systems across EVM chains (Ethereum, Polygon, Arbitrum, Base) using layerzero, CCIP, or custom bridges. Integrate with existing DeFi, DAO, and identity protocols to maximize utility.

Client Value: Expand your credential network across ecosystems, increasing user reach and enabling novel cross-chain gated experiences.

5+ Chains
Supported Networks
CCIP / LayerZero
Bridge Protocols
06

Security Audits & Formal Verification

Every SBT system undergoes rigorous security review. We partner with top auditing firms for third-party assessments and employ static analysis, fuzzing, and formal verification tools during development.

Client Value: Deploy with confidence. Our security-first approach mitigates risk, protects user assets, and meets the compliance requirements of institutional partners.

Third-Party Audited
Pre-Launch Mandate
Slither / MythX
Automated Analysis
benefits
DRIVE PLAYER ENGAGEMENT AND REVENUE

Business Outcomes for Your Game

Our EVM Soulbound Token System Design delivers tangible results that enhance your game's economy, player loyalty, and long-term viability.

01

Proven Player Retention

Implement non-transferable achievement tokens that lock in player identity and progress, increasing average session time by 40-60% and reducing churn.

40-60%
Longer Sessions
3x
Higher Retention
02

Sustainable In-Game Economy

Design token-gated content and progression systems that create persistent value, driving recurring revenue from cosmetics, access passes, and expansions without inflation.

Recurring
Revenue Model
0%
Speculative Inflation
04

Rapid Integration & Launch

Leverage our modular SDKs and pre-audited contract templates to integrate a custom SBT system into your existing game backend in weeks, not months.

< 4 weeks
To MVP
Full SDK
Developer Support
05

Interoperable Web3 Identity

Build a portable player reputation layer. SBTs become verifiable credentials for cross-game alliances, DAO governance, and exclusive ecosystem rewards.

ERC-6551
Compatible
Cross-Platform
Portability
06

Data-Driven Player Insights

Gain unprecedented visibility into player behavior and asset ownership on-chain, enabling hyper-targeted campaigns, balanced economies, and feature development.

On-Chain
Analytics
Real-Time
Economy Metrics
Choose Your Path to Production

Phased Development Tiers

A structured roadmap for launching your EVM Soulbound Token system, from MVP to enterprise-grade deployment. Each tier builds upon the last, ensuring a scalable and secure foundation.

FeatureFoundationProductionEnterprise

Custom SBT Smart Contracts

Gas-Optimized Architecture

Basic

Advanced

Custom

On-Chain & Off-Chain Data Model

Security Audit & Formal Verification

Basic Review

Full Audit + Report

Audit + Bug Bounty Setup

Multi-Chain Deployment Support

Single Chain

Up to 3 Chains

Unlimited

Integration Support (Wallets, Marketplaces)

Documentation

Guided Implementation

Full Technical Integration

Real-Time Minting & Revocation Dashboard

Performance & Security Monitoring

7-Day Post-Launch

90 Days

24/7 with SLA

Incident Response Time

Best Effort

< 24 Hours

< 1 Hour

Recurring Maintenance & Upgrades

Optional Retainer

Included

Estimated Timeline

3-4 Weeks

6-8 Weeks

10+ Weeks

Starting Investment

$15K

$45K

Custom Quote

how-we-deliver
PROVEN FRAMEWORK

Our Delivery Methodology

Our structured, four-phase approach ensures your EVM-based Soulbound Token (SBT) system is delivered on time, secure by design, and ready for production. We focus on measurable outcomes, not just features.

01

Architecture & Specification

We define the token logic, governance model, and integration points. Deliverables include a technical specification document and a high-level system architecture diagram.

Client Value: Clear scope, aligned expectations, and a technical blueprint for your development team.

1-2 weeks
Specification Phase
100%
Scope Clarity
02

Smart Contract Development

Our engineers build custom, gas-optimized SBT contracts using Solidity 0.8+ and OpenZeppelin libraries. We implement your specific logic for minting, burning, and managing token-bound attributes.

Client Value: Secure, auditable, and efficient core logic that forms the foundation of your system.

ERC-721/1155
Standards
OpenZeppelin
Security Base
03

Security & Audit Readiness

We conduct internal code reviews, write comprehensive unit/integration tests (90%+ coverage), and prepare your codebase for a formal third-party audit. We follow best practices to minimize vulnerabilities.

Client Value: Reduced audit costs, faster time to mainnet, and confidence in your system's security.

90%+
Test Coverage
Audit-Ready
Delivery State
04

Deployment & Integration

We handle the deployment to your chosen EVM network (Ethereum, Polygon, Arbitrum, etc.) and provide integration support for your front-end or backend systems. Includes deployment scripts and a runbook.

Client Value: A live, production-ready system and the documentation your team needs to maintain and extend it.

Multi-chain
Deployment
Full Runbook
Handoff
EVM Soulbound Token System Design

Frequently Asked Questions

Get clear answers on our development process, security, and timelines for your custom SBT system.

We deliver a minimum viable product (MVP) in 4-6 weeks, with full production deployment typically taking 8-12 weeks. This includes smart contract development, integration with your front-end, security audits, and testnet deployment. The timeline scales based on feature complexity, such as multi-chain support or advanced revocation logic.

conclusion
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3 experts to power your protocol.

We deliver audit-ready code from day one, using battle-tested patterns from OpenZeppelin and a rigorous internal review process. Our contracts are built for mainnet deployment, not just prototypes.

  • Custom Logic: ERC-20, ERC-721, staking, governance, and bespoke DeFi mechanics.
  • Security First: Formal verification, comprehensive unit/integration testing, and gas optimization.
  • Full Lifecycle: Development, deployment scripting, and post-launch monitoring support.

Reduce your time-to-audit by 60% with our structured development approach and comprehensive documentation.

We specialize in EVM-compatible chains (Ethereum, Polygon, Arbitrum) and Solana, ensuring your logic is portable and future-proof.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team
EVM Soulbound Token Development | Chainscore Labs | ChainScore Guides