Error code
Steam 51
STEAM51
Game/Platform Error· An error code shown by a game or gaming platform/launcher.
What it means
A game fails to launch with "Game failed to start (Error Code: 51)"..
How to fix it
- Verify integrity of game files.
- Install or repair DirectX and Microsoft Visual C++ Redistributable packages.
- Update your graphics drivers.
- Run Steam as administrator.
- Perform a clean boot to identify conflicting software.
- Reinstall Steam.
Not affiliated with Steam. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More Steam codes
- -101Steam cannot connect to its servers — commonly seen in the Steam store or at startup.
- -130Steam's built-in browser fails to load a page — displays "Error Code: -130 Failed to load web page (unknown error)".
- -138Steam's embedded browser cannot load a page — displays "Error Code: -138 Failed to load web page (unknown error)".
- 105Steam cannot load the store or community pages — displays "Unable to connect to server".
- 107A Steam Wallet transaction or redemption fails — EResult 107 (InsufficientFunds).
- 118Steam cannot connect to the server — displays "Unable to connect to server. Server may be offline or you may not be connected to the internet."
- 16A game fails to launch — the error message is "Operation timed out (Error Code: 16)".
- 17A player is banned from VAC-secured servers — displayed as "VAC banned" (EResult 17).
- 53Steam displays "The Steam servers are too busy to handle your request (Error Code: 53)" but the servers are often not the real cause.
- 54A game download or update stops with "Not enough disk space (Error Code: 54)".
- 6The Steam client logs out with "You have been logged on from another location" — corresponding to EResult 6 (LoggedInElsewhere).
- 63Steam Guard requires an email code to log in — displays "You need to provide a Steam Guard email code in order to log on" (EResult 63).