PrototypeSYSTEMS

SXP Online Core

A reference server for the online features games share: guest identity, sessions, presence, and a server-held profile with per-game saves.

Why it exists

So every game can share one online layer instead of building its own.

Where it stands

A tested reference implementation. It is not deployed to any public server, and no public game build uses it yet.

This is a description, not a window. Nothing on this site connects to the system, and no live data from it is shown.

What it does

  • Guest identity and sessions
  • Online and offline presence
  • Profiles and per-game saves that guard against overwrites and repeated requests
  • Account linking for recovery across devices

What it does not do

  • No passwords, chat, friends or matchmaking yet
  • Not a production identity provider, and no production database has been chosen

Direction

ISEKAI CROSSING is the first game planned to adopt it. No date is set.