Comparing the Top Cross-Platform Multiplayer Engines in 2025

Comparing the Top Cross-Platform Multiplayer Engines in 2025

Cross-platform multiplayer game engines in 2025 allow studios to deliver a unified online experience across PC, consoles, mobile, and the web—without the need to rebuild core systems for each platform. In this guide, we compare the leading engines side by side, covering features, networking stacks, platform reach, scalability, and costs. If you’re considering an engine this year, the short answer is: Unity remains the most versatile for multi-device multiplayer, Unreal Engine 5 excels in photoreal online action, Godot is the top free/open-source choice for indie networked games, and GameMaker/Construct/HaxeFlixel are optimal for fast 2D multiplayer. CryEngine serves as a niche, high-fidelity option for teams that can invest in substantial optimization. We present current data and developer feedback to help you make an informed choice.