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About Cyrex
Cyrex is the gold standard in Penetration Testing and Load Testing for global game studios and enterprise application developers. We provide the elite offensive security and massive-scale engineering required to protect high-stakes digital products.
Trusted by 100+ industry titans - including Amazon Games, Tencent, and EA - our team of 60+ engineers ensures your software is secure, scalable, and launch-ready.
Core Services:
Penetration Testing: Specialized offensive security for Games, Web3, and Enterprise Applications.
Load Testing: Powered by Cyrex Swarm, our proprietary technology capable of simulating millions of concurrent users.
Software Development: Full-cycle engineering for complex SaaS, dApps, and backend systems.
Whether you are launching a AAA title or a global enterprise platform, we don’t just test your product; we protect your reputation.
Cyrex is the clear market leader in load and penetration testing. They provide total confidence that our games will launch without security or scalability issues. By offering full player-representative load testing rather than just API endpoint checks, they test the entire ecosystem as one. Their high-quality reports offer actionable feedback, allowing us to fix critical issues before launch. Highly recommend. 10/10.
Cyrex and Xsolla
Cyrex supports Xsolla customers by providing specialist security and scalability assurance for online games and related product. This by helping studios validate that their services are secure (penetration testing) and stable under real player load (load testing) as they scale.
By joining the Xsolla Partner Ecosystem, Cyrex becomes an approved vendor studios can engage more easily when they need to harden online services and launch with confidence.
Media
Use cases
- Dune: Awakening - MMO Scale Load & Security Testing
Cyrex supported Dune: Awakening with combined load and penetration testing ahead of launch. Using Cyrex Swarm, large‑scale player behavior was simulated across authentication, matchmaking, and gameplay systems. Pair hacking enabled coordinated exploit discovery, helping ensure the game could scale securely under sustained live‑service load.
- Dying Light 2 - Multiplayer Backend Hardening
Cyrex conducted penetration and load testing for Dying Light 2, focusing on online co‑op services and backend infrastructure. Through grey‑box testing and pair hacking, Cyrex identified exploit paths and performance bottlenecks early, providing actionable remediation guidance to support a stable, secure multiplayer experience.
- Path of Exile 2 - Always‑On Live Service Security
Cyrex performed security testing on Path of Exile 2’s online services, targeting account security, progression systems, and backend APIs. Pair hacking simulated real‑world attacker collaboration, expanding vulnerability coverage and helping protect a complex live‑service ecosystem expected to run continuously at global scale.
- SCUM - Persistent World Multiplayer Testing
Cyrex supported SCUM with penetration testing focused on its persistent multiplayer world and backend services. Using grey‑box access and collaborative attack simulation, Cyrex identified vulnerabilities affecting player persistence and server integrity, helping stabilize long‑running sessions in a high‑population survival environment.
- V Rising - Securing Competitive Survival Gameplay
Cyrex conducted penetration testing for V Rising, focusing on multiplayer services, progression systems, and competitive gameplay integrity. Pair hacking allowed multiple exploit paths to be tested in parallel, reducing cheat and abuse risk in a PvP‑driven survival title with a rapidly growing player base.
- DeathSprint - Launch‑Ready Multiplayer Validation
Cyrex provided penetration and performance testing for DeathSprint to prepare its online systems for launch. By validating backend services and simulating real player behavior, Cyrex helped identify security and stability issues early, enabling the team to deliver a smoother multiplayer experience at release.