In the third episode of the Co-Dev Blueprint, we take a look at how working with an expert technical co-development partner can unlock your greatest creative ambitions. 

Join key members of the Treehouse Games team, Ryan Sullivan (Co-Founder & Game Director, Treehouse Games) and Dave Le (Technical Director, Treehouse Games) as well as their co-development partners at Black Shamrock –a Virtuos Studio,  Philip Cass  (Principal Software Engineer, Black Shamrock – a Virtuos Studio), Massimo D’Aponte (Senior Producer, Black Shamrock – a Virtuos Studio), and Ben Guiden (Lead Software Engineer, Black Shamrock- a Virtuos Studio) to see how deep Unreal Engine 5 engineering expertise and collaborative development supported the successful launch of the new cooperative survival-crafting title.

Learn how Black Shamrock – a Virtuos studio – tackled key project challenges, including seamless server-client synchronization, advanced multiplayer boat gameplay and physics, precise combat projectile tracking, performance optimization for a vast open world, and the creation of a modular character customization system, all combining to deliver an exceptional player experience.

Key Takeaways:

Seamless integration enables creative risk-taking
By embedding Black Shamrock’s engineering team into Treehouse’s core team, technical hurdles became opportunities for innovation rather than roadblocks, empowering the design team to expand their vision confidently.

Mastering multiplayer networking and physics enables responsive gameplay
Mastering multiplayer boat movement, combat synchronization, and reliable server-client communications ensured greater responsiveness in the dynamic open-world environment.

Performance optimization unlocks vast open-world potential
The deployment of instanced actors transitioned resource-heavy assets into highly efficient renderable objects, eliminating bottlenecks and supporting nearly unlimited draw distances for a more immersive player experience.

Modular systems streamline production
Modular character creators and plug-and-play assets allowed rapid iteration and scaled content delivery, saving significant time while preserving deep player customization and social interactivity.

Collaborative development bridges vision and reality faster
Strong production leadership balanced creative ambition with engineering practicality, guiding complex feature delivery and synchronizing cross-disciplinary teams to maintain momentum under tight deadlines.

Episode Chapters: 

Integrating a Co-Development Partner (⁠04:42 – 12:57)
Ryan, Dave, and Massimo discuss how Black Shamrock seamlessly integrated with Treehouse Games, enabling creative freedom through trust, strong communication, and collaborative production management.

Multiplayer Boat Gameplay & Physics (⁠12:57 – 20:03)
Ben breaks down the challenges of synchronizing multiplayer boat movement and physics in Unreal Engine 5 to deliver smooth, responsive gameplay despite network latency.

Combat & Projectile Tracking (⁠20:03 – 24:44)
Ben discusses the complexities of synchronizing projectile arcs over a network using predictive ballistic formulas to ensure smooth, fair, and enjoyable combat across players. 

Open-World Optimization (⁠24:44 – 31:48)
Philip explains using instance actors to optimize rendering of thousands of world objects, improving performance and maintaining dynamic resource lifecycles in a large Unreal Engine 5 multiplayer open world. 

Modular Character Creator (31:48 – 42:50)
Massimo and Ben share how modular, data-driven systems enabled efficient cosmetic integration and scalable character customization that supports ongoing content expansion.

Team Project Highlights/Key Moments (43:05 – 49:01)
The team reflects on key milestones, including the first smooth multiplayer boat playtests and the rewarding close collaboration between Treehouse Games and Black Shamrock. 

To read more about our work on Voyagers of Nera check out our success story here.

Want to learn more about the project and the tools and techniques we implemented to optimize the game? Check out Black Shamrock’s GDC 2026 session: “Smooth Sailing: Using Asset Health Metrics to Optimize Voyagers of Nera”. 

Facing a development roadblock with your game? Talk to our team today to learn more about how a co-development model can help you.