Wyldheart’s Steam page lists Cross-Platform Multiplayer, and the developers’ wider PC Early Access plan references both Steam and Epic Games Store. That is not enough to claim that Demo 0.7.2 currently supports Steam-to-Epic parties, and it does not confirm console crossplay. For the public demo, organize around the platform and client you can verify together.
What is confirmed and what remains open
The base game identity is Steam AppID 3642910. The public Demo is a separate AppID 4475270 distributed from that Steam listing. The older Beta is AppID 3643050 and should not be substituted for the demo. Players using different product clients are not demonstrating a crossplay failure; they are attempting to join incompatible test scopes.
Store capability labels are useful signals, but they do not explain every supported pairing, account requirement, test environment, or launch stage. A platform matrix needs a direct first-party statement or repeatable current test for each pairing.
Join the current demo without identity mistakes
Have every player open the base game’s official Steam listing and choose the public Demo. Confirm the developer is Wayfinder Studios and the running build is the same current Demo version. Do not use WILD HEARTS, AppID 1938010; it is an unrelated game despite the similar name.
The host creates a join code and shares it privately. Demo 0.7.2 hotfix notes specifically address join-code visibility and include fixes around the Online Save checkbox. If joining fails, regenerate the code, confirm all players are online, and verify that no one launched the separate Beta client.
The demo supports parties of up to four. Shared experience currently applies to members who are online, so confirming the party before earning progress matters even when every player uses the same storefront.
How to evaluate a future crossplay announcement
Look for a statement that names the stage—Demo, Early Access, or full release—and both endpoints. “PC crossplay” is clearer than a generic label, while “Steam and Epic parties can join each other in Early Access” would be clearer still. Record whether external accounts, friend codes, region limits, or version parity are required.
Do not extend a PC statement to consoles. Do not extend an Early Access plan backward to the current Demo. Do not treat the presence of an Epic release plan as proof that an Epic Demo client exists with compatible matchmaking today.
Sources checked for crossplay status
The feature label and base product identity are visible on the official Steam listing. The current demo’s Steam distribution, party size, and product boundaries are checked against the official Demo FAQs and the team’s demo launch discussion. Join-code and online-save fixes come from the 0.7.2 hotfix notes. None of these checked sources directly confirms Steam-to-Epic Demo matchmaking or console crossplay.
The short answer for party planning
For Demo 0.7.2, place everyone on the current public Steam Demo client, online, at the same version, and use the host’s fresh join code. The Steam product signals a cross-platform multiplayer direction, and public plans name Steam and Epic for PC Early Access, but the exact Demo storefront matrix and any console matrix remain unconfirmed. A party formed under those shared conditions also gives support reports a clean, reproducible baseline if joining fails. State that boundary whenever answering “Does Wyldheart have crossplay?” so an aspirational product feature does not become a false current compatibility promise.