LEASH REACTION — SPACEWAR PLAYTEST QUICK START

1. Keep Steam open and signed in.
2. Extract the entire Windows archive; do not launch from inside the ZIP.
   On macOS, extract the archive and keep the app intact.
3. Launch LEASH REACTION.exe (Windows) or LEASH REACTION.app (macOS).
4. The host selects HOST FRIENDS, then INVITE FRIENDS in the Steam overlay.
5. A guest accepts the Steam invite and clicks JOIN. No IP, port, VPN, or
   router setup is used.
6. If Steam does not route the invite, the host reads the short lobby code
   shown in-game and the guest enters it under JOIN CODE.

This is an App ID 480 (Spacewar) development playtest. The full owner checklist,
expected behavior, troubleshooting, and feedback form are in
docs/PLAYTEST_KIT.md in the repository.