# SDK overview Everything the Wavedash SDK gives your game — accounts, multiplayer, leaderboards, and more. Source: https://docs.wavedash.com/sdk/overview Every game calls `Wavedash.init()` once to reveal itself from the loading screen — see [SDK setup](/sdk/setup). Beyond that, the features below are optional; add only what your game needs, in just a few lines each. The SDK is available automatically when your game runs on Wavedash — there's nothing to install. ## SDK features Lobbies, chat, invites, and P2P networking. Ranked scoreboards, updated in real time. Reward players for hitting milestones. Progress syncs across devices automatically. Accounts, avatars, friends, and presence. Players create, share, and download content. Let players start free, then unlock the rest in-game. ## How it works Your game runs in the browser. When a player opens it on Wavedash, the SDK is automatically injected before your code runs — you just call its methods. During local development, `wavedash dev` gives you a sandbox version so everything works the same way. ## Supported engines The SDK works with any engine that runs in a browser. Godot and Unity have dedicated bindings, and everything else uses the JavaScript API directly.