OBSIDIAN SM (Secure Multiplayer)

This is a proposal for an optional Secure Multiplayer system for PC Bedrock, focused on player trust, safety, and long-term multiplayer health.

This is not about turning Minecraft competitive or limiting creativity. 

Right now, PC multiplayer has a trust issue. This goes beyond PvP cheating and includes malicious clients joining private worlds, griefing or nuking worlds, Realms being damaged, and younger players being exposed to unfair or harmful behavior. Servers can only react to network behavior and have no visibility into the client itself.

OBSIDIAN Secure Multiplayer (SM) would be:

• PC-only

• Optional

• Only active when joining servers or Realms that opt in

• Not required for singleplayer or offline worlds

• Non-kernel and lightweight

When enabled by a server or Realm, PC players would need OBSIDIAN SM running to join. Console and mobile players would be unaffected. The system would perform basic client integrity checks to block known malicious tooling and common exploit methods. Verified performance or QoL overlay clients could be allowed.

This preserves Minecraft’s openness while adding trust where it matters. If a player doesn’t want it, they can still play singleplayer or join non-secure servers.

Secure Multiplayer also fits existing Xbox account age controls, giving parents more confidence in online play while reducing abuse in private worlds and Realms.

The goal isn’t banning more players — it’s preventing harm, improving trust, and strengthening multiplayer safety long-term.