To play (or other legacy versions), you must use the Steam Console to download the specific "depot" files associated with that version. Note that older versions generally do not support official online multiplayer, as the servers now run on version 2.0+. 🛠️ How to Download Legacy Versions
: Type the following into the console: download_depot 269210 269211 download-hero-siege-v5-7-4-0-online
: Open that folder and run Hero_Siege.exe . You may need to rename steam_api.dll to steam_api_backup.dll to prevent it from trying to update. 🎮 Playing Online To play (or other legacy versions), you must
: Once finished, Steam will show a path (usually ...\Steam\steamapps\content\app_269210\... ). To play (or other legacy versions)