We architect and deploy custom smart contracts that form the foundation of your Web3 product. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and comprehensive audit cycles to protect your assets and users.
LABS
Services
EVM-Based Challenge Game Development
We build custom, on-chain interactive fraud proof games (bisection, single-step) for EVM-compatible Layer 2s. Our team delivers secure, gas-optimized dispute resolution logic in Solidity/Vyper, backed by rigorous security audits.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
Deliver a secure, audited, and gas-optimized contract suite in as little as 2-4 weeks.
Our full-service development includes:
- Custom Logic: Tailored
Solidity 0.8+contracts for DeFi, NFTs, DAOs, and more. - Security Audits: Internal reviews followed by integration with top-tier third-party auditors like CertiK or Quantstamp.
- Gas Optimization: Code-level tuning to reduce user transaction costs by 15-40%.
- Full Deployment & Verification: End-to-end handling from testnets (
Sepolia,Holesky) to mainnet (Ethereum,Polygon,Arbitrum).
We provide ongoing maintenance and upgrade strategies, including transparent proxy patterns for seamless future improvements. Our contracts are built to integrate smoothly with your front-end and backend, ensuring a cohesive application architecture.
key-features-cards
END-TO-END GAME MECHANICS
Core Components We Deliver
We architect and deploy the complete on-chain logic for your challenge game, from secure smart contracts to seamless user interactions. Each component is built for scalability, security, and a frictionless player experience.
01
Smart Contract Architecture
Custom Solidity contracts for game state, player progression, and reward distribution. Built with OpenZeppelin standards, gas-optimized for high-frequency interactions, and designed for easy future upgrades.
OpenZeppelin
Security Standard
Gas-Optimized
For High Volume
02
Challenge & Quest Engine
Modular on-chain logic for creating, tracking, and validating player challenges. Supports time-based, multi-step, and conditional quests with verifiable proof-of-completion.
Modular
Quest Logic
On-Chain
Verification
03
Reward & Incentive System
Integrated ERC-20/ERC-1155 token and NFT reward distribution. Implements secure claim mechanics, vesting schedules, and anti-sybil measures to ensure fair and sustainable player incentives.
ERC-20/1155
Reward Types
Anti-Sybil
Fair Distribution
04
Player Identity & Progress
Non-custodial wallet integration and persistent on-chain player profiles. Tracks achievements, stats, and history across sessions, enabling true digital ownership of progress.
Non-Custodial
Wallet Login
Persistent
On-Chain Profile
05
Oracle Integration Layer
Secure connections to Chainlink or custom oracles for bringing off-chain data (scores, API results, real-world events) on-chain to trigger game logic and validate challenges.
Chainlink
Verified Data
Secure
Relay Layer
06
Admin & Analytics Dashboard
A secure backend dashboard for managing game parameters, monitoring player activity, distributing rewards, and viewing key metrics—all without requiring blockchain expertise.
Real-Time
Analytics
No-Code
Game Management
benefits
EXPERTISE & GUARANTEES
Why Partner for Your Fraud Proof System
Building a production-ready fraud proof system requires deep expertise in EVM internals, game theory, and adversarial testing. We deliver battle-tested systems with clear SLAs, not just theoretical designs.
01
Proven Security Architecture
Our systems are built on a multi-layered security model, incorporating formal verification for core game logic and comprehensive adversarial simulations. We deliver contracts audited by leading firms like Trail of Bits or Quantstamp.
100%
Formal Verification Coverage
2+ Audits
Minimum Security Reviews
02
Optimized for Gas & Speed
We specialize in low-gas, high-throughput challenge game logic. Our implementations minimize on-chain footprint and ensure sub-2-second response times for critical state transitions, keeping your L2 costs predictable.
< 2 sec
State Transition
40%+
Avg. Gas Reduction
03
Full-Stack System Integration
We deliver more than smart contracts. Our package includes the off-chain challenger/defender clients, monitoring dashboards, and integration SDKs for your existing sequencer and data availability layer.
4 Components
Full Delivery
< 3 weeks
Integration Timeline
04
Adversarial Testing & Simulation
Every system undergoes rigorous stress-testing against thousands of simulated attack vectors (e.g., griefing, timeout attacks, censorship) before deployment, ensuring resilience in mainnet conditions.
10K+
Attack Simulations
99.9% SLA
System Uptime
Tailored for Your Game's Stage
Structured Development Packages
Compare our tiered service packages for EVM-based challenge game development, from initial MVP to enterprise-grade deployment.
| Feature / Deliverable | Starter (MVP) | Professional (Production) | Enterprise (Scale) |
|---|---|---|---|
Custom Smart Contract Suite | |||
On-Chain Game Logic & Mechanics | Basic | Advanced | Custom Complex |
Frontend Integration (React/Next.js) | Basic UI | Polished UI/UX | Custom Design System |
Smart Contract Security Audit | Internal Review | Third-Party Audit (1 Firm) | Multi-Firm Audit + Bug Bounty |
Multi-Chain Deployment Support | 1 Testnet | 1 Mainnet + 1 Testnet | Up to 3 Mainnets |
Gas Optimization & Cost Analysis | |||
Integration with Oracles (e.g., Chainlink) | Price Feeds | VRF + Custom Adapters | |
Backend Services & API | Minimal | Robust Node.js Backend | Microservices Architecture |
Post-Launch Support & Monitoring | 30 Days | 90 Days + Dashboard | 12 Months + SLA |
Team Training & Documentation | Basic | Comprehensive | Ongoing Consultation |
Estimated Timeline | 4-6 Weeks | 8-12 Weeks | 12+ Weeks |
Starting Investment | $25,000 | $75,000 | Custom Quote |
how-we-deliver
PROVEN PROCESS
Our Development & Audit Methodology
A rigorous, multi-stage approach that ensures your EVM-based challenge game is secure, scalable, and ready for launch. We combine battle-tested development practices with exhaustive security audits to deliver production-ready code.
01
Architecture & Design Review
We begin with a comprehensive analysis of your game's economic model and technical requirements. Our team designs a modular, upgradeable smart contract architecture optimized for gas efficiency and user experience, preventing costly refactors later.
2-3 days
Initial Design Sprint
>50%
Reduced Gas Costs
02
Secure Smart Contract Development
Development follows strict standards using Solidity 0.8+ with OpenZeppelin libraries. We implement custom logic for challenge mechanics, reward distribution, and anti-cheat systems, with continuous internal peer review and testing.
100%
Test Coverage
OpenZeppelin
Security Foundation
03
Multi-Layer Security Audits
Every contract undergoes three audit phases: automated analysis (Slither, MythX), manual code review by our senior auditors, and a final external review. We document and remediate all findings before deployment.
3 Phases
Audit Depth
Critical Zero
Guarantee
04
Gas Optimization & Profiling
We profile and optimize every function for minimal gas consumption, a critical factor for user adoption. Techniques include storage packing, efficient data structures, and batch operations to keep transaction costs predictable.
< 0.01 ETH
Avg. User Tx Cost
30-70%
Gas Savings Achieved
05
Deployment & Verification
We manage the full deployment lifecycle on mainnet and testnets, including contract verification on Etherscan, proxy pattern setup for upgradeability, and initialization of core game parameters and admin controls.
< 4 hours
Production Deployment
100%
Etherscan Verified
06
Post-Launch Monitoring & Support
We provide 30 days of post-deployment monitoring with alerts for unusual contract activity and on-call support. Includes analytics dashboards for key metrics like user engagement and contract gas usage.
30 Days
Included Support
24/7
Alert Monitoring
For CTOs and Technical Leads
Fraud Proof Development: Key Questions
Common questions from engineering teams evaluating custom fraud proof and challenge game development for their rollup or L2.
We deliver production-ready fraud proof contracts and off-chain verifiers in 4-8 weeks for a standard implementation. This includes design, development, testing, and audit preparation. Timeline varies based on complexity: a basic single-step challenge for an Optimistic Rollup is faster, while a multi-round, interactive fraud proof for a novel VM may take longer. We provide a detailed project plan with milestones within the first week of engagement.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall