Participating Challenge Sites

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ID Language Site Users Challs Average Dif Fun Description
47EnglishPolandSPOJ57814564461.12%50.00%25.00%SPOJ (Sphere Online Judge) is an online judge system with 2000 programming challenges. The solutions to challenges can...
15SlovakSlovakiaBrainQuest15386115014.27%50.00%63.89%Brainquest is a slovak riddle site, focused on crypto, steganography and logics. Also there is an category Orbis pictis...
36EnglishTurkeyRoseCode13074636.04%53.57%71.43%This site publishes mostly math based programming challenges. Other topics include Crypto, Brainfck, Hacking, and...
37EnglishUnited StatesCSTutoringCenter625934641.61%39.70%68.05%CSTutoringCenter.com provides many different kinds of challenges. You are free to solve them in any language and with...
5EnglishUnited KingdomTheBlackSheep1250534212.84%75.00%63.04%This site offers challenges in almost any category from easy to difficult. It has a nice user-interface, including an...
4EnglishSingaporeRankk816132613.03%79.35%75.00%Rankk's challenges are organised into levels from easy to difficult. The challenges are based on topics ranging from...
13SpanishSpainYashira43373067.47%54.17%58.33%Yashira es un sitio en español dedicado a retos informáticos,ciencias e ingenio.
32EnglishUnited StatesHacker.org4508629220.83%86.77%83.82%The hacker explores the intersection of art and science in an insatiable quest to understand and shape the world around...
46FrenchFranceRoot-Me13126529111.02%60.00%70.83%Root Me allows everyone to test and improve their knowledge in computer security. Our community helps us maintain a...
10FrenchFranceNewbieContest4543428114.03%75.00%79.69%A french site which is not only focused on beginners. Challenge categories are cracking, crypto, hacking, Java/script,...
85EnglishCanadaRingZer0 Team Online CTF210882737.09%50.00%50.00%RingZer0 Team's online CTF offers you tons of challenges designed to test and improve your hacking skills through...
55FrenchFranceRight-Answer128424319.04%39.29%53.12%This website want to make you think and learn in several chall spread over several categories such as logic,...
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...
22PolishPolandTDHack2318920213.94%45.00%42.50%TDHack (Think Devise Hack) is the first polish challenge site, launched in September 2004. The challenges cover a wide...
12EnglishSwitzerlandLOST-Chall352219913.92%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,...
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...
9GermanGermanyHappy-Security1499218325.90%63.33%66.07%Happy-Security is a german challenge site. {also translated in english} Beside the 'normal' challenge sections, there...
53EnglishUnited StatesEnigmaGroup4657118217.02%75.00%66.67%Since 2005, Enigma Group has been providing its members a legal and safe security resource where they can develop their...
49EnglishUnited KingdomRevolution Elite202718014.07%75.00%83.33%A site based on a detective theme which uses suspect elimination, clues, and more traditional challenge categories to...
70EnglishUnited StatesOverTheWire.org-116619.88%72.37%97.92%The wargames offered by the OverTheWire community can help you to learn and practice security concepts in the form of...
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,...
39EnglishSwitzerlandAstalavista28019915624.67%65.62%72.73%Astalavista.com - Home of the fiendish challenges
91EnglishUnited KingdomHack The Box289681529.09%50.00%50.00%Hack The Box is an online platform allowing you to test your penetration testing skills and exchange ideas and...
66GermanGermanyHacking-Challenges93714527.13%41.67%87.50%Hacking-Challenges is a german challenge site. In challenges from 8 categories, for example javascript, cryptography,...
1EnglishGermanyWeChall374131433.30%80.77%79.69%WeChall is aiming to make a global ranking of challengers over multiple sites. It launched in january of 2008.
75GreekGreeceMathchall38513420.23%50.00%50.00%Mathchall is requiring the mind to use pure intelligence in the attainment of pure truth. ---Now you can maximize you...
57EnglishUnited StatesSecurity Override2195510333.05%50.00%75.00%Here at SecurityOverride, we offer pen-testing tutorials, hacking challenges, security articles, security forums,...
18EnglishUnited StatesHackThisSite3950010219.34%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...
40SpanishColombiaWorld of Wargame211710126.27%50.00%75.00%World of Wargame is a challenge site running from 2009 with more than a hundred challenges varying from easy to medium...
16EnglishNetherlands, TheNet-Force320789530.78%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...
65EnglishUnited KingdomCanYouHack.It238509325.97%75.00%100.00%CanYouHack.It is a security based challenge site where members get to show of their skills, learn new ones and socialize...
43FrenchFranceHackBBS312589118.08%75.00%60.00%Hack en situation réelle.
58EnglishUnited StatesValhalla36729112.97%50.00%100.00%Valhalla is a place for sharing knowledge and ideas. Valhalla allows users to submit code, as well as science,...
64EnglishUnited Stateswixxerd.com6549030.95%62.50%66.67%A collection of crackme's, hackme's, puzzles and games. Some are pretty simple, some... not so much...
48FrenchFranceW3Challs20146898.73%78.57%87.50%0% simulation & guessing. Hacking challenges only! Wargames (from classic linux/x86 to hardened kernel exploits),...
21EnglishIsraelTryThis0ne122567217.31%45.00%50.00%Trythis0ne is a system of Hacking\Reversing\Encryption etc' challenges. Every challenge challenge the user in different...
84EnglishColombiaChallengeland10827014.86%50.00%50.00%Challengeland is a site of war games to learn and improve your hacking skills created by Redexel and Germanlm93
38EnglishNetherlands, Thelistbrain.tk19306615.93%58.33%68.75%Another english site
51KoreanKorea, Republic OfWebhacking.kr243136642.50%70.00%83.33%Webhacking.kr has 58 challenge about webhacking. You can try various SQL INJECTION problem.
83EnglishKorea, Republic Ofpwnable.kr20829665.62%75.00%100.00%'pwnable.kr' is a non-commercial [i]wargame site[/i] which provides various pwn challenges regarding system...
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...
20SpanishSpainelhacker.net26194566.04%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...
52FrenchFranceµContest9825629.27%79.55%79.17%FRENCH/ENGLISH : µContest is a programming challenges website. The challs can be about cryptgraphy, algorithmic,...
76EnglishUnited KingdomHackThis!!5183035531.79%50.00%87.50%Want to learn about hacking and network security? Find out how the most common hacks are performed.
54KoreanKorea, Republic OfHack-Me137615319.75%75.00%75.00%Hack-Me is one of the best challenge site in south korea, launched in this month. The challenges cover a wide range of...
30EnglishHungaryhax.tor.hu204375049.08%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...
59EnglishAntarcticahacking.allowed.org384913.83%87.50%100.00%Your description is invalid. It has to be 12-4096 characters long.
63EnglishSpainYoire5304937.98%25.00%33.33%Wargame oriented site for having fun and learn hacking :)
45EnglishPolandSecurity Traps13664827.67%100.00%100.00%The newest Polish professional challenge site. We focus on quality, difficulty and originality of the tasks, not...
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.