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Hi everyone! I'm working on the fast paced multiplayer browser pvp game with following gamedev stack. Angular Website -> global place for the game, responsible for: user account state, game UI, user info etc. (REST and WebSocket connections) Client Game Engine -> based on ECS and PIXI rendering with custom gameloop, client-side- predition and all that stuff. (WebRTC Geckos.io connections.) Nest.js -> backend for angular website, chat, matchmaking, creating services with Server Game Engines when players are ready to play. (REST api and WebSocket connections) Authoritative Server Game Engine -> shared a lot with client, based on ECS etc (WebRTC Geckos.io connections.) MongoDB -> DB for everything. Any ideas / guides on how to scale things up? I read about load balancers using reverse-proxy on nginx and pm2, node.js task partitioning and offloading also microservices with redis. But still dont know if i'm understaning this correctly. For example: 2 players want to play with each other -> new instance of ecs world will be created with all physics etc, this instance has a server game loop with examplary 50 ticks per second, taking from 10% to 100% cpu usage depending on how many entities are currently in game world. If i understand correctly when server game loop is running its blocking the node.js event loop so no other task can be done. So if another 2 players would want to play i would need to create new game server instance in the best case scenario on the second core in the worst on the new physical server. To make this work I would need to have a load balancer and some kind of management over creating and removing new server game engine instances. Maybe game engine should be microservice and Nest.js backend would be the main service which would delegate users to game engine instances? It's very odd looking to me that on 8 core CPU only 16 players could play in the same time. Is there any diffrent way i should go with this to enable more CCU playing? Maybe serverless? Any advice on how to scale server side gameloops which are resource demanding on node would be appreciated :). Sorry for my english and overall knowledge (new in networking and backend world!)