
Colyseus
8.5#1 in websocket toolsFrom $15 a monthFree planAndroidiOSWebAPI
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It suits developers building real-time multiplayer games who want server-authoritative state synchronization and matchmaking. Teams can choose self-hosting or Colyseus Cloud, depending on their deployment needs.
It is aimed at game and app developers who need backend services and Unity or REST API integration. Developers should check the plan call limits and how API-call size is counted.