.STEAMSTART File Extension

Valve Steam Start File

Developer Valve
Popularity
4.2  |  95 Votes
 

What is an STEAMSTART file?

Temporary file created for games downloaded by Valve's Steam game distribution service; named by a game filename, an identifier, and the ".steamstart" suffix (e.g., game.exe.1234.steamstart); sometimes created when games do not load properly.

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Programs that open or reference STEAMSTART files

Windows
Valve Steam
Free+

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