Hi HN! I'm working on an open-world multiplayer space sim with submarine-warfare-inspired combat. Crew a ship, haul cargo, run heists, hunt your foes with passive and active sensors. Browser-based, free, no install.

Some of its features:

  - Submarine-style passive sensors. Contacts start as a bearing line (direction, no distance), resolve into an uncertainty circle, then into a full track. You triangulate over time by moving.
  - Silent running. Cut your emissions and witnesses can't ID you.
  - Newtonian flight. No drag, no auto-brake. Flip 180° and burn to stop.                                                   
  - Boarding combat. Dock with another ship and fight through it room by room.

Architecture:

  - The server is a single Rust module compiled to WASM, running inside SpacetimeDB.
  - Clients subscribe to rows in the schema and get live deltas over websocket; writes go through reducers (transactional Rust functions). No REST, no custom netcode, no client-side authority.                                                              
  - Client is Svelte 5 + plain HTML5 canvas 2D. No game engine, no WebGL.

https://imgur.com/a/V8cHrdd

Very early, plenty of rough edges. Would love to hear what breaks for you:

https://everestdrive.io