Ok so this thread has been created to consolidate information on Crash upon Starting Game issues with Besiege.
We need to keep this Thread organised and containing useful information so please stick to the guidelines listed here. If I ask a question or offer a new solution please all try it. If someone has tried it and posted that it doesn't work, you should still try it but there is no need to say that it didn't work.

Bug:
When you launch the game, it imediately crashes sometimes your whole system locks up or restarts

If you are experiencing another type of bug or crash this is not the place to post!

Before posting please try the following fixes:

• Try setting your resolution manually in the config.txt file (This is located in the Besiege_Data Folder)If you do not have a config.txt file continue with other steps and in your post say you don't have one
• Update All you Drivers
• Run the game in Admin mode
• If you are running SLI or Crossfire, try disabling it
• Try restarting your computer
• Try running the game in windowed mode by changing the config.txt
• Try re-installing or verifying the game files
• If you are running any utility programs (MSIAfterburner, Riva Tuner, etc), try turning them off
• If you are using any anti-virus software, grant Besiege permissions or temporarily disable your anti-virus

If none of these fixes worked then please post the following:

System Specs:

Operating System
CPU
Ram
Graphics Card
Platform (Steam or Humble)


Attach your Output_log.txt to your post (Please use attachment function and don't just copy and paste the text in)

Do you get an error message? What is it?

Are you missing the config.txt?

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We are really sorry that your having issues but hopefully with everyone's help and clear posts of information we can get this fixed!

Thank you for your time!