Day One FixesKnown issueFixUpdated · 10 replies on Steam
OUTERPLANE: Error on Launch: SYS_Steam_Update_Desc (Workarounds)
Short answer
Suggested fix (unconfirmed): Wait for the scheduled maintenance to end at 05:00 (UTC).
The problem
Just installed Outerplane, saw it was now on Steam so thought I'd give it another chance since I last played it. But now getting this error on launch, it gets to the splash screen with the version # and a pic of some of the characters, and then this message about SYS_Steam_Update_Desc pops up with a blank button I can click that does nothing. All I can do is force close the screen. Tried…
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Source: original Steam Community discussion. Quotes are shortened; all credit goes to the posters.