: For a safe, non-beta alternative, players often use Steam Remote Play Together . This allows one person to own the game and "stream" the session to friends, enabling local co-op over the internet without needing external patches or risky downloads.

: As of early 2024, an official online multiplayer mode for The Binding of Isaac: Repentance is currently in public beta . Players who own the game on Steam can access it by right-clicking the game in their library, selecting Properties > Betas , and entering the code isaaconlinebeta .

: Files ending in .rar with names like "Multiplayer-Fix" from third-party sites are frequent vectors for malware and adware . Because the official game now supports online play through Steam, there is no legitimate reason to download external "fix" files.