colyseus VS ab-server

If you don't want to dive deep into backend then https://colyseus.io/ might also be an option.

Since you already know Javascript you could try to use some existing server framework at first to avoid having to do everything from scratch. https://github.com/colyseus/colyseus

Try this Node.js based server framework https://github.com/colyseus/colyseus

https://colyseus.io/ (Authoritative server, that works with many engines JavaScript/Phaser/Unity/Haxe/Defold)

If you want web based you'll likely use Javascript for frontend/client. Check if this JS game server framework has what you need https://github.com/colyseus/colyseus

Also check Colyseus. Bit similar multiplayer server framework and built on top of Node.js/TypeScript. https://github.com/colyseus/colyseus

The above project uses a Node.js authoritative game state called Colyseus (https://github.com/colyseus/colyseus) which handles the state synchronisation between clients and server.

We use Colyseus for this. Pretty easy and open source too. https://colyseus.io/

The code is an open source, https://github.com/wight-airmash/ab-server

Ah ha!! https://airmash.online/

This one is good, it's the backend of a game server: https://github.com/wight-airmash/ab-server

Airmash - dokonce ma i vlastni komunitu na redditu: r/airmash. ted to se zmenami na serverech trochu utichlo, ale porad se v pozdnich vecernich hodinach hraje CTF, coz je nejzabavnejsi.

One helpful thing that the airmash.online client has that the other clients don't have is the ability to set two zoom levels, and then switch back and forth between them. I usually have one smaller window for close-quarters fighting and a larger window as an overview of the area so I'm not surprised by any threats. Granted, this larger zoom does have that area where nothing will show up (this is due to the max zoom level set by server admin).

Not sure I understand, what's blocked? airmash.online seems to be working just fine?