CTF 313

Welcome to CTF 313! Here's what you need to do to get started:

  • Sign up for an account. You must be logged in to access challenges.
  • Once you're logged in, the main page will have instructions on how to set up a team. This is optional, and you can still play solo without one.
    • The maximum team size is 4.
  • Head on over to the challenges to start playing.
  • Be sure to keep an eye on the leaderboard to see your current rank and everyone's scores in real-time.


  • You must be present at BSides Detroit at closing ceremonies to be eligible for prizes. Anyone on the internet is welcome to compete, but only those physically present at the conference will be able to win prizes.
    • Some challenges will be impossible to complete if you are not physically present at BSides. Sorry, but that's just the way it is. This is a conference hosted CTF.
  • This scoreboard application (0xc7f313.com/ is out of scope from the game. Attacking it may result in score penalties or disqualification at the discretion of the staff.
  • Don't attack other contestants, or the on-site networks, or the conference, or TechTown, etc. Be excellent to each other, etc. This is vague, but unfortunately necessary. CTF staff reserves the right to hand out penalties or disqualifications for any unsporting conduct (or for any reason, actually). If you don't know whether or not you should be doing something, ask.