Participating Challenge Sites

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ID Language Site Users Challs Average Dif Fun Description
45EnglishPolandSecurity Traps14384827.16%100.00%100.00%The newest Polish professional challenge site. We focus on quality, difficulty and originality of the tasks, not...
73EnglishBelgiumTasteless-12145.56%100.00%100.00%Tasteless challenges, several levels that will test you in security and logical thinking
81EnglishKorea, Republic OfStereotyped Challenges19942325.65%100.00%100.00%"Stereotyped Challenges" provides advanced web-based security challenges that guides you to the latest trend of web...
90EnglishPolandhackburger7741032.02%100.00%25.00%(mainly) web security challenges by Laboratorium EE.
6EnglishUnited KingdomElectrica115324425.08%88.46%79.55%Reverse engineering, cryptography, maths, steganography challenges. Home of the challengers handbook.
24EnglishItaly+Ma's Reversing286472820.96%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...
59EnglishAntarcticahacking.allowed.org424913.27%87.50%100.00%Your description is invalid. It has to be 12-4096 characters long.
32EnglishUnited StatesHacker.org4624429220.83%86.77%83.82%The hacker explores the intersection of art and science in an insatiable quest to understand and shape the world around...
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...
1EnglishGermanyWeChall412441453.05%80.77%79.69%WeChall is aiming to make a global ranking of challengers over multiple sites. It launched in january of 2008.
4EnglishSingaporeRankk841332712.89%79.35%75.00%Rankk's challenges are organised into levels from easy to difficult. The challenges are based on topics ranging from...
48FrenchFranceW3Challs23006938.07%78.57%87.50%0% simulation & guessing. Hacking challenges only! Wargames (from classic linux/x86 to hardened kernel exploits),...
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...
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...
52FrenchFranceµContest10775628.55%77.27%77.08%FRENCH/ENGLISH : µContest is a programming challenges website. The challs can be about cryptgraphy, algorithmic,...
5EnglishUnited KingdomTheBlackSheep1267034212.87%75.00%63.04%This site offers challenges in almost any category from easy to difficult. It has a nice user-interface, including an...
10FrenchFranceNewbieContest4667128713.53%75.00%79.69%A french site which is not only focused on beginners. Challenge categories are cracking, crypto, hacking, Java/script,...
43FrenchFranceHackBBS312589118.08%75.00%60.00%Hack en situation réelle.
49EnglishUnited KingdomRevolution Elite276618714.53%75.00%83.33%A site based on a detective theme which uses suspect elimination, clues, and more traditional challenge categories to...
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...
56KoreanKorea, Republic Ofwargame.kr69884146.01%75.00%75.00%this `wargame.kr` has challenges for web, system, reversing, etc.. i will trying to add more challenges, have a lotta...
61EnglishGermanyRedTigers Hackit-11055.05%75.00%95.00%10 SQL Injection challenges. After the final level you can put yourself into the hall of fame. No registration possible.
83EnglishKorea, Republic Ofpwnable.kr26695705.31%75.00%100.00%'pwnable.kr' is a non-commercial [i]wargame site[/i] which provides various pwn challenges regarding system...
20SpanishSpainelhacker.net26510565.96%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...
70EnglishUnited StatesOverTheWire.org-117319.14%71.25%98.15%The wargames offered by the OverTheWire community can help you to learn and practice security concepts in the form of...
51KoreanKorea, Republic OfWebhacking.kr304216640.86%70.00%83.33%Webhacking.kr has 58 challenge about webhacking. You can try various SQL INJECTION problem.
30EnglishHungaryhax.tor.hu208465049.14%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...
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
16EnglishNetherlands, TheNet-Force321599530.64%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...
82EnglishUnited Statesae27ff50324032.76%64.28%96.43%Beginner to intermediate puzzles intended to hone user hunting and decoding skills used in Alternate Reality Games.
9GermanGermanyHappy-Security1694718325.73%63.33%66.07%Happy-Security is a german challenge site. {also translated in english} Beside the 'normal' challenge sections, there...
18EnglishUnited StatesHackThisSite3950010218.89%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...
12EnglishSwitzerlandLOST-Chall360319913.79%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!
50HungarianHungaryGekkó1601027.84%62.50%56.25%Now available in English and Hungarian. You play the role of a police agent and help your boss, colleagues and friends...
64EnglishUnited Stateswixxerd.com6799030.81%62.50%66.67%A collection of crackme's, hackme's, puzzles and games. Some are pretty simple, some... not so much...
78EnglishUnited KingdomMod-X6824941.09%62.50%62.50%Mod-X is a fictional online game. In Mod-X you will become one of the Mod-X 'agents' and have to solve any tasks that...
46FrenchFranceRoot-Me1704833179.92%60.00%70.83%Root Me allows everyone to test and improve their knowledge in computer security. Our community helps us maintain a...
38EnglishNetherlands, Thelistbrain.tk29646615.96%58.33%68.75%Another english site
13SpanishSpainYashira43473067.44%54.17%58.33%Yashira es un sitio en español dedicado a retos informáticos,ciencias e ingenio.
36EnglishTurkeyRoseCode13495135.55%53.57%71.43%This site publishes mostly math based programming challenges. Other topics include Crypto, Brainfck, Hacking, and...
15SlovakSlovakiaBrainQuest15597118813.78%50.00%63.89%Brainquest is a slovak riddle site, focused on crypto, steganography and logics. Also there is an category Orbis pictis...
40SpanishColombiaWorld of Wargame221810122.29%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...
47EnglishPolandSPOJ63082866291.10%50.00%25.00%SPOJ (Sphere Online Judge) is an online judge system with 2000 programming challenges. The solutions to challenges can...
57EnglishUnited StatesSecurity Override2195510333.05%50.00%75.00%Here at SecurityOverride, we offer pen-testing tutorials, hacking challenges, security articles, security forums,...
58EnglishUnited StatesValhalla39779112.50%50.00%100.00%Valhalla is a place for sharing knowledge and ideas. Valhalla allows users to submit code, as well as science,...
60EnglishKorea, Republic OfReversing.Kr153822745.48%50.00%50.00%This site tests your ability to Cracking & RCE (Reverse Code Engineering).
62KoreanKorea, Republic OfSuNiNaTaS81693247.73%50.00%100.00%SuNiNaTaS have 15 games : Web(8), Cracking(4), Forensic(3) Skill level is medium. We are good hackers.
72EnglishFranceNo Such Con 2013000.00%50.00%50.00%The HES/NSC 2013 challenges. Still available thanks to Steven from overthewire.org!
74EnglishIrelandIRISSCON 2012 Lost Challenges4151359.57%50.00%87.50%This site includes the challenges I made for IRISSCON 2012 CTF. However due to the large number of submissions, these...
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.