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Developer tools · #photonengine
Stop wasting bandwidth on invisible players. Learn how to use Photon Interest Groups to filter network traffic and optimize client CPU performance in multiplayer games.
Assign objects to Interest Groups and subscribe clients only to relevant groups to reduce bandwidth and client CPU in Photon multiplayer games.
Use Room Properties for declarative matchmaking and Interest Groups for in-game culling to control fan-out in Photon Engine Rooms, with explicit reliability choices per message type.
Learn when to enable Photon Interest Groups, how they compare to other filtering methods, and see a concrete Unity-PUN 2 implementation with verification steps.
Practical architecture note: one room per match, RaiseEvent messaging, Master Client as lightweight arbiter, trust boundaries, event caching and interest groups for small multiplayer backends.
Learn how Photon Realtime Interest Groups let you limit network updates to relevant zones, cutting bandwidth in large multiplayer games with a simple setup and clear verification steps.
Photon broadcasts every event to everyone in a room by default. Interest groups and PUN's Network Culling let the server filter delivery — here's when that pays off and how it fails silently.
Guide to choosing Server‑Authoritative movement in Photon Fusion: compare options, see trade‑offs, and implement a minimal authoritative player controller with validation steps.
Learn how to implement room-based matchmaking and state synchronization in Photon Realtime using room properties, observable properties, and RPCs.
unity