: Hero's Hour primarily supports Local Co-op and Remote Play Together (via Steam), which allows you to play with friends online using the official Steam version.
: Sites claiming to offer an "Online" version of a single-player game often bundle malware or unwanted software.
Searching for "v2.2.3 Online" often leads to unofficial or "cracked" sites. If you're looking to download or play the game safely, here are the official platforms: