GameNetworkingSockets vs Unity
GameNetworkingSockets
github.com
Unity
unity.comSide by side
| Figure | GameNetworkingSockets | Unity |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | Yes | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 8 |
| Spec score · Game Networking Middleware | 8.2 (#8) | 8.6 (#4) |
| Integrations | Third-party language bindings are listed for C#, Go, and Rust. | Unity Integrations connect Cloud Build, Cloud Diagnostics and Collaborate with webhooks, Discord, Slack and email. |
Plans
Unity
- Free tierFree
- Pay-as-you-goPrice not published
- Pay-as-you-goPriced on request
- Unity PersonalFree
- Unity Pro$210 a month
- Unity Pro$2,310 a year
- Unity EnterprisePriced on request
- Unity IndustryPriced on request
In their own words
GameNetworkingSockets
GameNetworkingSockets is a free BSD-3-Clause transport library for games that sends reliable and unreliable messages over UDP. It handles messages larger than the underlying MTU through fragmentation and reassembly, with retransmission for reliable messages. Packets use AES-GCM-256, while Curve25519 supports key exchange and certificate signatures. Peer-to-peer connections can use Google WebRTC ICE for NAT traversal, with an option to plug in a signaling service. Multiple message lanes can share one connection under strict priorities or weighted bandwidth rules. Included diagnostics simulate packet latency and loss and measure detailed statistics. The library is written in C++ and also exposes a plain C interface; third-party bindings are listed for C#, Go, and Rust. Build instructions cover Linux, Windows, macOS, and iOS. Steam is not required for the open-source library, but authentication, signaling, and Steam Datagram Relay remain Steam-only services. Higher-level entity serialization, delta encoding, and compression are not included.