Star Defenders is a sandbox-based 2D game with slightly different approach than regular game in same genre would have. It is developed by Eric Gurt in 2021 (first prototype was much earlier though).
Game should be playable at this stage. All world logic is handled by server - connection is established using websockets (socket.io). So basically unlike Star Defenders 3D this one is not peer-to-peer.
Feel free to let me know what you think about this game on my twitter page.
This game was meant to test out some stuff including meaningful stress testing - so feel free to tell your friends about it :P