Reported / storefront-specific: Cross-platform multiplayer is officially indicated for Halloween: The Game, but IllFonic has not published a complete platform pairing matrix ahead of launch.

The Xbox store page for Halloween: The Game currently lists:

• Xbox cross-platform multiplayer
• Xbox cross-platform co-op
• Online multiplayer: 2–5 players

This supports the core 1 Michael vs 4 Civilians format described in IllFonic’s multiplayer overview (/multiplayer/).

Developer materials confirm online multiplayer on:

• PC (Steam and Epic)
• PlayStation 5
• Xbox Series X|S

Crossplay is discussed in official channels, but specific pairings (for example, whether every PC store can match with every console lobby) are not fully documented in primary sources reviewed pre-launch.

Without a reliable first-party matrix, do not state as fact:

• Guaranteed PS5 ↔ Xbox ↔ Steam ↔ Epic combinations
• Whether crossplay is opt-in or opt-out by default
• Required account types (e.g., Epic vs Steam for PC)
• Whether ranked and casual queues share crossplay pools

Mark these as launch verification pending.

After Advance Access (September 4, 2026) and full release (September 8, 2026), verify on your platform:

1. In-game crossplay toggle or account prompt (if present)
2. Party invite flow with friends on other platforms
3. Store-specific requirements for PC (Steam vs Epic)
4. Voice chat behavior across platforms

• Multiplayer format: /multiplayer/how-multiplayer-works/
• Bots / private lobbies: /bots-private-lobbies-offline/
• PC requirements: /pc/system-requirements/
• Advance Access timing: /early-access-release-time/

• Multiplayer gameplay overview — Halloween: The Game
• Halloween: The Game — Xbox Store