Participating Challenge Sites

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ID Language Site Users Challs Average Dif Fun Description
47EnglishPolandSPOJ78834768121.09%50.00%25.00%SPOJ (Sphere Online Judge) is an online judge system with 2000 programming challenges. The solutions to challenges can...
76EnglishUnited KingdomDefend the Web6970016026.75%50.00%87.50%An interactive security platform where you can learn and challenge your skills.
91EnglishUnited KingdomHack The Box3754425015.16%100.00%100.00%Hack The Box is an online platform allowing you to test your penetration testing skills and exchange ideas and...
46FrenchFranceRoot-Me3606853777.81%66.67%78.12%Root Me allows everyone to test and improve their knowledge in computer security. Our community helps us maintain a...
39EnglishSwitzerlandAstalavista28019915624.95%65.62%72.73%Astalavista.com - Home of the fiendish challenges
1EnglishGermanyWeChall526771462.92%80.77%79.69%WeChall is aiming to make a global ranking of challengers over multiple sites. It launched in january of 2008.
10FrenchFranceNewbieContest5000329513.41%75.00%79.69%A french site which is not only focused on beginners. Challenge categories are cracking, crypto, hacking, Java/script,...
32EnglishUnited StatesHacker.org4787729221.45%86.77%83.82%The hacker explores the intersection of art and science in an insatiable quest to understand and shape the world around...
53EnglishUnited StatesEnigmaGroup4657118217.16%75.00%66.67%Since 2005, Enigma Group has been providing its members a legal and safe security resource where they can develop their...
51KoreanKorea, Republic OfWebhacking.kr435316139.72%70.00%83.33%Webhacking.kr has 58 challenge about webhacking. You can try various SQL INJECTION problem.
83EnglishKorea, Republic Ofpwnable.kr42597705.58%75.00%100.00%'pwnable.kr' is a non-commercial [i]wargame site[/i] which provides various pwn challenges regarding system...
18EnglishUnited StatesHackThisSite3950010218.01%58.82%70.59%Hack This Site is a free, safe and legal training ground for hackers to test and expand their hacking skills. More than...
16EnglishNetherlands, TheNet-Force368169530.52%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...
85EnglishCanadaRingZer0 Team Online CTF361973285.71%50.00%50.00%RingZer0 Team's online CTF offers you tons of challenges designed to test and improve your hacking skills through...
43FrenchFranceHackBBS312589118.19%75.00%60.00%Hack en situation réelle.
24EnglishItaly+Ma's Reversing290292820.56%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...
19EnglishUnited StatesThisisLegal.com280444339.39%48.08%70.83%Welcome to Thisislegal, a hacker wargames site but also with much more - such as forums and tutorials.
35EnglishUnited Kingdomosix277524626.38%78.12%72.22%Home of the GEEK Challenges. We are a community of developers and IT enthusiasts interested in sharing ideas, writing...
48FrenchFranceW3Challs27155987.31%78.57%87.50%0% simulation & guessing. Hacking challenges only! Wargames (from classic linux/x86 to hardened kernel exploits),...
20SpanishSpainelhacker.net27094565.98%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...
89EnglishTaiwanpwnable.tw239354614.80%100.00%100.00%Pwnable.tw is a wargame site for hackers to test and expand their binary exploiting skills.
22PolishPolandTDHack2331520213.82%45.00%42.50%TDHack (Think Devise Hack) is the first polish challenge site, launched in September 2004. The challenges cover a wide...
60EnglishKorea, Republic OfReversing.Kr221082750.17%50.00%50.00%This site tests your ability to Cracking & RCE (Reverse Code Engineering).
30EnglishHungaryhax.tor.hu219125049.43%68.75%79.69%HaX.ToR.Hu is a challenge site putting emphasis on teaching basic security related issues in a fun way. Players get a...
15SlovakSlovakiaBrainQuest16233121413.09%50.00%63.89%Brainquest is a slovak riddle site, focused on crypto, steganography and logics. Also there is an category Orbis pictis...
21EnglishIsraelTryThis0ne129107216.79%45.00%50.00%Trythis0ne is a system of Hacking\Reversing\Encryption etc' challenges. Every challenge challenge the user in different...
5EnglishUnited KingdomTheBlackSheep1267034212.92%75.00%63.04%This site offers challenges in almost any category from easy to difficult. It has a nice user-interface, including an...
99EnglishUnited KingdomCryptoHack1200111816.91%100.00%100.00%CryptoHack is a fun platform to learn modern cryptography through solving challenges and cracking insecure code. Can you...
6EnglishUnited KingdomElectrica118494424.83%88.46%79.55%Reverse engineering, cryptography, maths, steganography challenges. Home of the challengers handbook.
56KoreanKorea, Republic Ofwargame.kr113714222.44%75.00%75.00%this `wargame.kr` has challenges for web, system, reversing, etc.. i will trying to add more challenges, have a lotta...
62KoreanKorea, Republic OfSuNiNaTaS112543248.29%50.00%100.00%SuNiNaTaS have 15 games : Web(8), Cracking(4), Forensic(3) Skill level is medium. We are good hackers.
9GermanGermanyHappy-Security1102418325.78%63.33%66.07%Happy-Security is a german challenge site. {also translated in english} Beside the 'normal' challenge sections, there...
93EnglishIndonesiaCTFS.ME106116310.41%50.00%50.00%Ctfs.me is a place where you can learn about various category of hacking everytime and get you skill increased.
82EnglishUnited Statesae27ff102464036.52%64.28%96.43%Beginner to intermediate puzzles intended to hone user hunting and decoding skills used in Alternate Reality Games.
4EnglishSingaporeRankk905434811.94%80.00%75.92%Rankk's challenges are organised into levels from easy to difficult. The challenges are based on topics ranging from...
38EnglishNetherlands, Thelistbrain.tk77987114.58%58.33%68.75%Another english site
58EnglishUnited StatesValhalla76529112.22%50.00%100.00%Valhalla is a place for sharing knowledge and ideas. Valhalla allows users to submit code, as well as science,...
78EnglishUnited KingdomMod-X6843941.20%66.67%75.00%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...
37EnglishUnited StatesCSTutoringCenter625934642.18%39.70%68.05%CSTutoringCenter.com provides many different kinds of challenges. You are free to solve them in any language and with...
95EnglishGermanyMysteryTwister58323190.63%50.00%50.00%MysteryTwister (MTC3) ===================== This time we are really happy to announce... that experts in the...
12EnglishSwitzerlandLOST-Chall572719913.57%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!
13SpanishSpainYashira44203067.39%54.17%58.33%Yashira es un sitio en español dedicado a retos informáticos,ciencias e ingenio.
98EnglishAustralia247CTF38535211.28%75.00%100.00%247CTF is a security environment where hackers can test their abilities across a number of different challenge...
49EnglishUnited KingdomRevolution Elite340219513.29%75.00%83.33%A site based on a detective theme which uses suspect elimination, clues, and more traditional challenge categories to...
25PolishPolandShow Your Skills324418612.18%84.09%77.27%sys.warchall.net is a polish website with a lot of challenges. You can find here hackmes, crackmes, cryptography...
96EnglishKorea, Republic OfLordofSQLi30844940.85%50.00%100.00%LoS provides 49 stepwise SQLinjection challenges. Challenges are about SQLinjection at mysql, sqlite, mssql, mongodb,...
81EnglishKorea, Republic OfStereotyped Challenges27712231.76%50.00%100.00%"Stereotyped Challenges" provides advanced web-based security challenges that guides you to the latest trend of web...
40SpanishColombiaWorld of Wargame244810121.37%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...
87EnglishArgentinaHacker Gateway24212361.32%50.00%62.50%The go-to place for hackers who want to put their skills to the test.
23GermanGermanyMiBs Challenges223015635.00%65.91%73.22%MiBs Challenges is a German riddle site started in 2005 with over 150 challenges in 9 categories including math,...
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.