TL;DR of the post, generated automatically.

A browser-based 3D zombie survival and battle royale shooter built with Three.js, playable with no download.

• Modes: Solo zombie survival against growing waves, co-op with friends via room codes, and a PUBG/BGMI-style battle royale with a shrinking blue zone.
• Setting: Indian village and small-town buildings and surroundings, with day/night lighting, vehicles, and enterable buildings.
• Feedback wanted: OP [author] asks for thoughts on the 3D environment, rendering, performance, and gameplay.
• Unknown: The post still has a placeholder where the multiplayer networking technology should be named, so what it runs on isn't stated.