The all-in-one multiplayer backend for Godot 4

Build and ship multiplayer games in Godot 4 without dedicated servers or networking expertise. GD-Sync is a fully managed multiplayer backend, relay network, and online services suite designed exclusively for Godot 4. Get your multiplayer game online in minutes with multiplayer lobbies, leaderboards, matchmaking, synchronization, accounts, and more, with no port forwarding, server hosting, or complex netcode to manage.

Key Features

• Global Multiplayer Lobbies & Matchmaking: Create public or private multiplayer lobbies with custom tags, matchmaking, and automatic host migration. Browse public lobbies, join a lobby by code, or lock a lobby down for friends only. Easily build lobby-based sessions for co-op, competitive, or social games, real-time or turn-based. [Docs]
• Multiplayer Property Synchronization: Effortlessly synchronize variables, nodes, and transforms across players with built-in interpolation for smooth multiplayer movement, responsive networking, and reliable state sync. [Docs]
• Cloud Storage & Player Accounts: Secure player authentication with email verification and persistent cross-device save files for multiplayer games and online experiences. [Docs]
• Global Leaderboards: Paginated, competitive leaderboard rankings tied directly to the player account system. Submit a score to a leaderboard, fetch a player's leaderboard rank, or delete a leaderboard entry with a single function call. Perfect for competitive multiplayer games and persistent online leaderboards. [Docs]
• Global Multiplayer Relay Infrastructure: High-performance traffic routing through our managed relay network. Connect multiplayer players P2P (peer-to-peer) or through the relay without NAT issues or port forwarding.
• Steam Multiplayer Integration: Seamlessly link with GodotSteam for "Join Friend" functionality through the Steam friends list, making it easy for players to connect to online multiplayer sessions. [Docs]
• In-Depth Analytics: Track player counts, data usage, engagement, and growth for your multiplayer game directly from your dashboard, with separate API keys to monitor multiple games independently.

Technical Highlights

• GDScript & C# Multiplayer Support: The entire multiplayer networking API is fully supported in both GDScript & C#, including custom RPCs for game-specific logic.
• P2P Networking, Zero Setup: GD-Sync connects players P2P through a managed relay, so peer-to-peer sessions work instantly with no NAT punchthrough, router configuration, or dedicated servers to run.
• 100+ Built-in Functions: A comprehensive multiplayer API covering lobby management, synchronization, remote calls, accounts, cloud storage, and leaderboards, all a single function call away.
• Built-in Security: Every connection and every byte of gameplay data is fully encrypted. Remote calls are locked down by default; nothing is callable until you explicitly expose it, and every call is tagged with a server-verified sender ID, so no client can impersonate another.
• Cross-Platform Multiplayer: Built to support multiplayer games and online co-op across PC, Mobile, and Web exports.
• Built-in Multiplayer Nodes: PropertySynchronizer, NodeInstantiator, SynchronizedRigidBody, SynchronizedAnimationPlayer, SynchronizedAnimationTree, SynchronizedAnimatedSprite2D, SynchronizedAudioStreamPlayer, SynchronizedGPUParticles, VoiceChat.
• Advanced Multiplayer Profiler: Monitor network traffic, inspect multiplayer performance, and optimize your game's multiplayer data usage and bandwidth directly within Godot.
• Zero Server Ops: Fully managed multiplayer backend and online infrastructure. No Docker containers, databases, dedicated servers, or server maintenance to worry about.

Build Your Multiplayer Game Faster

GD-Sync handles the multiplayer infrastructure and networking so you can focus on building your game. From multiplayer matchmaking, lobbies, and leaderboards to real-time synchronization, player accounts, voice chat, text chat, Steam integration, and persistent online data, everything is available through one Godot 4 multiplayer solution.

Get started for free: gd-sync.com Full Setup Guide: Docs - Getting Started