Participating Challenge Sites

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ID Language Site Users Challs Average Dif Fun Description
35EnglishUnited Kingdomosix277524626.01%78.12%72.22%Home of the GEEK Challenges. We are a community of developers and IT enthusiasts interested in sharing ideas, writing...
33EnglishUnited StatesBlack Zero15456122.95%78.12%72.22%Black Zero is a new community of hacking, coding, and lock picking enthusiasts. The site offers over 50 interactive...
32EnglishUnited StatesHacker.org4436429221.01%86.77%83.82%The hacker explores the intersection of art and science in an insatiable quest to understand and shape the world around...
30EnglishHungaryhax.tor.hu201335049.26%68.75%80.00%HaX.ToR.Hu is a challenge site putting emphasis on teaching basic security related issues in a fun way. Players get a...
25PolishPolandShow Your Skills324418611.92%84.09%77.27%sys.warchall.net is a polish website with a lot of challenges. You can find here hackmes, crackmes, cryptography...
24EnglishItaly+Ma's Reversing283672820.82%87.50%85.00%A game I hope you and I will enjoy, a source of information which can become useful for reversers, and a way to meet new...
23GermanGermanyMiBs Challenges223015634.75%65.91%73.22%MiBs Challenges is a German riddle site started in 2005 with over 150 challenges in 9 categories including math,...
22PolishPolandTDHack2313120214.06%45.00%42.50%TDHack (Think Devise Hack) is the first polish challenge site, launched in September 2004. The challenges cover a wide...
21EnglishIsraelTryThis0ne120997217.45%45.00%50.00%Trythis0ne is a system of Hacking\Reversing\Encryption etc' challenges. Every challenge challenge the user in different...
20SpanishSpainelhacker.net25915566.04%72.22%66.67%We now have site navigation in english and spanish (some tests are only available in spanish). Esta es un wargame, que...
19EnglishUnited StatesThisisLegal.com258934342.23%55.00%69.45%Welcome to Thisislegal, a hacker wargames site but also with much more - such as forums and tutorials.
18EnglishUnited StatesHackThisSite3950010219.44%63.23%67.65%Hack This Site is a free, safe and legal training ground for hackers to test and expand their hacking skills. More than...
17SpanishSpainHispabyte01348.19%45.45%61.36%Wargame de Hispabyte, zona práctica de un sitio dedicado a la seguridad, informática y programación. Wargame of...
16EnglishNetherlands, TheNet-Force316609530.81%65.00%70.24%Net-Force has been around since 2002, starting off as a Dutch website. The site is now only in English and has a diverse...
15SlovakSlovakiaBrainQuest14759113214.55%50.00%63.89%Brainquest is a slovak riddle site, focused on crypto, steganography and logics. Also there is an category Orbis pictis...
14FrenchFranceinfomirmo150320310.18%70.00%70.00%A new French site turned to the learning of the computing through the SOSI challenge. SOSI is a linear challenge with a...
13SpanishSpainYashira43263067.54%54.17%58.33%Yashira es un sitio en español dedicado a retos informáticos,ciencias e ingenio.
12EnglishSwitzerlandLOST-Chall349619913.72%63.04%66.31%A site based on the TV show Lost. Challenges range from easy to hard. Non-Lost fans will find this enjoyable too!
11EnglishFranceDareYourMind1176619015.32%69.23%56.67%More than 180 challs. Javascript, Cracking, Crypto, Stegano, Realistic challs (SQL, Authentication, ...), Logic,...
10FrenchFranceNewbieContest4469427914.19%75.00%79.69%A french site which is not only focused on beginners. Challenge categories are cracking, crypto, hacking, Java/script,...
9GermanGermanyHappy-Security1442118326.29%63.33%66.07%Happy-Security is a german challenge site. {also translated in english} Beside the 'normal' challenge sections, there...
6EnglishUnited KingdomElectrica113764425.42%88.46%79.55%Reverse engineering, cryptography, maths, steganography challenges. Home of the challengers handbook.
5EnglishUnited KingdomTheBlackSheep1222734212.93%75.00%63.04%This site offers challenges in almost any category from easy to difficult. It has a nice user-interface, including an...
4EnglishSingaporeRankk807432613.00%78.41%74.00%Rankk's challenges are organised into levels from easy to difficult. The challenges are based on topics ranging from...
1EnglishGermanyWeChall356831423.35%80.77%79.69%WeChall is aiming to make a global ranking of challengers over multiple sites. It launched in january of 2008.
How to add other sites to WeChall
If you are a challenge site administrator, please read join.php.
If you want your favorite site to get added you can try to contact their admins.
Please do not post about WeChall in their public forums, instead write them an email or pm.