The primary Steam source was reviewed on 2026-08-08. Exact values or steps that source does not confirm remain labeled unknown until reproduced in the current version.
What crossplay confirms—and what it does not
The developer's official information explicitly lists cross-platform play across the supported versions of Big Walk. That answers the main compatibility question: a group is not restricted to one platform family simply because its members use different supported systems. The confirmed player range remains 2–12, so crossplay changes the available platform mix rather than the size of the session.
Crossplay support does not mean every copy can join at every moment regardless of version. The official FAQ says the first two segments of the version number must be the same. This guide does not claim that later segments never matter for anything else; it only repeats the compatibility condition that has been verified. It also does not promise that updates reach every platform at a particular time.
- Supported systems: Windows, Mac, PS5, and Switch 2
- Cross-platform sessions are officially supported
- The overall session size remains 2–12 players
- The first two version-number parts must match
A fact-safe mixed-platform checklist
First, choose the person who will host, remembering that the host starts the game and saves that group's progress. Next, have each participant read the version shown by their current client and compare the first two portions. Once those match, the host can create the session and locate its Join Code in the host menu or Session Details. Share that session's code with the intended players.
This sequence combines only confirmed rules; it does not invent platform-specific button labels. A menu may look different on Windows, Mac, PS5, or Switch 2, and the exact presentation can change. Use the current client to find the version and Join Code, and use the official FAQ when the wording differs from this page.
- Pick the continuing host
- Compare the first two version parts for every player
- Start the host's session
- Use the code shown in the host menu or Session Details
If the versions do not match
A mismatch in either of the first two version components means the verified compatibility condition is not satisfied. Stop before diagnosing the Join Code as defective. Check each platform's normal update interface and the official Big Walk information for current status. The supplied sources do not establish a universal way to force an update or a schedule for when one platform receives a patch.
NAT types, router ports, firewall exceptions, and other networking fixes are also outside the confirmed evidence. Do not change network security settings solely because a generic guide says crossplay requires it. Record the visible versions and any exact in-game message, then seek current official support. That keeps version compatibility—the known requirement—separate from unverified technical guesses.
- Do not promise a platform patch time
- Do not substitute an old code for the current session code
- Do not apply generic port changes as an official fix
- Preserve the visible version and error wording for support