You might need to download the Steamworks SDK separately from Steam’s partner site, then use Clickteam’s wrapper extension.
A user sits before a dim screen, fingers hovering. The filename blinks in the download manager: steamworks.mfx — compact, unassuming, almost ceremonial. What exactly will arrive if the progress bar completes? A patch? A plugin? A patchwork of sounds? The mind fills in possibilities. steamworks.mfx download
Visit the official Clickteam forums (The Clickteam Community) and search for "Steamworks object update" or post in the "Extensions" sub-forum. The developers monitor those threads daily. You might need to download the Steamworks SDK
: Some users fix this by manually placing the Steamworks.mfx file and the corresponding steam_api.dll into the game's main directory. For Developers (Clickteam Fusion Users) If you are developing a game and need the extension: What exactly will arrive if the progress bar completes