Steam “Failure to start game Unknown Error” Error on games that are already installed!

Windows 10 users are suffering with different types of error while playing Steam games on their PC or laptop, if you are one of them and getting error messages while gaming on steam then don’t worry as this blog contains the complete guide to fix Windows 10 steam errors. Here we will discuss one of the common error message "Steam not running! Please run this game from steam. (Restart steam if running)". 

This error message comes into view while playing the game. In order to get rid of “Failure to start game Unknown Error” error message you should apply all of the below given tips, these given tips are very effective and able to fix “Failure to start game Unknown Error” without need of any professional expertise. 

Also Read: Steps to Fix Display/Video/Graphics Issues after Windows 10

Trick 1: Try to Run the game as administrator

Step 1: First of all you need to find a file SalvationProphecy.exe

Step 2: Generally it is located at:

C:\Program Files\Steam\steamapps\common\SalvationProphecy\bin\release\SalvationProphecy.exe

Step 3: Right click on it and choose "Run as Administrator"

Step 4: If this step works then Ok otherwise you need to go on to the next Trick.

Trick 2: Try to Run steam as administrator

Step 1: Close the steam completely: [Go to the top left menu -> Steam -> Exit]

Step 2: Wait for few seconds and allow to finish shutting down

Step 3: After it right click on the steam icon, choose "Run as Administrator"

Step 4: Try to execute the game normally

Step 5: If you are still unable to run the game then go to the next step. 

Trick 3: Verify the integrety of game cache

Step 1: Open Steam and right click on the Salvation Prophecy, click on the "Properties"

Step 2: Click on the "LOCAL FILES" tab

Step 3: Click on the "VERIFY INTEGRITY OF GAME CACHE..."

Step 4: Wait until it is done

Step 5: After it try running the game normally.

This trick will surely solve the steam issues, if not then go on to the next trick.

Trick 4: Verify your antivirus settings

Some antivirus programs can block this gaming platform so it is recommended to make sure that your antivirus program is OK and no one program is blocked by this. No exact solution is available because it depends on your antivirus program. If you are Avast users then be aware as this antivirus program is not compatible with steam game.

Trick 5: Disable the Steam Overlay

Step 1: Run Steam and go to the Settings.

Step 2: Choose the In-Game Settings tab.

Step 3: After it uncheck the box present along with the Enable Steam Community In-Game and click OK.

Step 4: Turn off the Steam Overlay on specific games: right click on the game title -> choose Properties, and uncheck Enable Steam Community In-Game in the General tab.

Step 5: Reboot Steam and launch the game again.

If you are still unable to resolve the issue, then you must visit: How to Run Steam Games on Windows 10 without any Issues