Too Long; Didn't Read
Wargames sites offer hacking challenges on different categories like cryptographic, cracking, steganography, programming, Linux and Windows knowledge, logic, math and science. The difficulty of the challenges vary as well. The more challenges you solve the more points you get and obviously there is a ranking where you can compete to be on top. Wargame sites are used for beginners, skilled and experts for learning, practicing and improving their skills on different topics. The challenges include cracking, cracking and cracking.