Over The Wire
The Bandit wargame is aimed at absolute beginners. It will teach the basics needed to be able to play other wargames.
PWN College
pwn.college is an education platform for students (and other interested parties) to learn about, and practice, core cybersecurity concepts in a hands-on fashion. In martial arts terms, it is designed to take a “white belt” in cybersecurity to becoming a “blue belt”, able to approach (simple) cybersecurity competitions (CTFs) and wargames. Our philosophy is “practice makes perfect”.
We Call
For the people not familiar with challenge sites, a challenge site is mainly a site focussed on offering computer-related problems. Users can register at such a site and start solving challenges. There exist lots of different challenge types. The most common ones are the following: Cryptographic, Crackit, Steganography, Programming, Logic and Math/Science. The difficulty of these challenges vary as well.