- [FBCTF](https://github.com/facebook/fbctf) - The Facebook CTF is a platform to host Jeopardy and “King of the Hill” style Capture the Flag competitions.
- [CTFd](https://github.com/CTFd/CTFd) - CTFd is a Capture The Flag in a can. It's easy to customize with plugins and themes and has everything you need to run a jeopardy style CTF.
- [SecGen](https://github.com/cliffe/SecGen) - SecGen creates vulnerable virtual machines so students can learn security penetration testing techniques.