Guides
Task-oriented recipes that combine the Platform API and a runtime to ship something real. Most show web and Native side by side.
Concept pages explain what something is; guides show how to build a specific thing end to end. Each one names the Platform API surfaces it uses and, where it matters, shows the same task on both runtimes.
Build your first multiplayer world
Instances, events, and a server-authoritative interaction.
Persist player data
Save and load progress with Cloud Save the right way.
Sell an item for LIX
A server-authoritative, idempotent in-world purchase.
More on the way
This section grows with the platform. Proximity voice, avatars, and matchmaking guides are next. If
you're an AI agent, the /llms-full.txt bundle includes every guide in one file.
Keeping these docs in sync
How the Phone SDK docs stay current with the code — an automated drift detector that compares the live SDK surface on the helix3 branch against the documented snapshot and flags anything new, changed, or removed.
Build your first multiplayer world
A complete walkthrough — join an instance, exchange events, and run one server-authoritative interaction.