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ID Language Site Users Challs Average Dif Fun Description
105EnglishSpainHackMyVM145653674.81%50.00%50.00%This site was created around 2020 to provide to people a free platform to play CTF, Challenges, some online labs and to...
104EnglishUnited Statespwn.college27491148313.51%41.67%91.67%pwn.college is an education platform for students (and other interested parties) to learn about, and practice, core...
103EnglishTunisiaPWN.TN18452817.99%50.00%50.00%PWN.TN is an educational and non commercial wargame. There is various IT security related challenges for fun and...
102EnglishBrazilPromptRiddle30785926.13%75.00%66.67%PromptRiddle is a fun prompt-based riddle website which requires thinking outside the box along with...
100EnglishUnited StatesCan You Hack It?®50.00%50.00%The Can You Hack It?® Challenge was created by Assured Information Security (AIS) engineers to test the skills of...
99EnglishUnited KingdomCryptoHack857052339.71%100.00%100.00%CryptoHack is a fun platform to learn modern cryptography through solving challenges and cracking insecure code. Can you...
98EnglishAustralia247CTF207377210.65%87.50%100.00%247CTF is a security environment where hackers can test their abilities across a number of different challenge...
96EnglishKorea, Republic OfLordofSQLi169934940.01%75.00%100.00%LoS provides 49 stepwise SQLinjection challenges. Challenges are about SQLinjection at mysql, sqlite, mssql, mongodb,...
95EnglishGermanyMysteryTwister128593710.49%50.00%50.00%MysteryTwister (MTC3) ===================== This time we are really happy to announce... that experts in the...
94EnglishKorea, Republic OfCanHackMe75.00%100.00%Have fun challenges!
93EnglishIndonesiaCTFS.ME50.00%50.00%Ctfs.me is a place where you can learn about various category of hacking everytime and get you skill increased.
92EnglishGermanytry to decrypt13242341.71%87.50%100.00%Little game to train your brain - try to decrypt some texts in different levels from easy to hard. Can you enter the...
91EnglishUnited KingdomHack The Box215586415163.10%87.50%100.00%Hack The Box is an online platform allowing you to test your penetration testing skills and exchange ideas and...
90EnglishPolandhackburger100.00%50.00%(mainly) web security challenges by Laboratorium EE.
89EnglishTaiwanpwnable.tw342734618.13%100.00%100.00%Pwnable.tw is a wargame site for hackers to test and expand their binary exploiting skills.
87EnglishArgentinaHacker Gateway50.00%62.50%The go-to place for hackers who want to put their skills to the test.
86EnglishKorea, Republic OfSolveMe50.00%50.00%I closed this wargame.
85EnglishCanadaRingZer0 Team Online CTF505863965.60%100.00%100.00%RingZer0 Team's online CTF offers you tons of challenges designed to test and improve your hacking skills through...
84EnglishColombiaChallengeland50.00%50.00%Challengeland is a site of war games to learn and improve your hacking skills created by Redexel and Germanlm93
83EnglishKorea, Republic Ofpwnable.kr67315705.98%87.50%100.00%'pwnable.kr' is a non-commercial [i]wargame site[/i] which provides various pwn challenges regarding system...
82EnglishUnited Statesae27ff206134139.28%64.28%96.43%Beginner to intermediate puzzles intended to hone user hunting and decoding skills used in Alternate Reality Games.
81EnglishKorea, Republic OfStereotyped Challenges27952231.87%50.00%100.00%"Stereotyped Challenges" provides advanced web-based security challenges that guides you to the latest trend of web...
80EnglishUnited StatesDisavowed.net220646.47%50.00%50.00%One of the original challenges! Disavowed.net is once again available to play (hosted within Mod-X). Enjoy!
79EnglishUnited KingdomOmega Project268745.08%50.00%50.00%The Omega Project is a new set of Mod-X challenges which have been designed to test many different skill areas and to...
78EnglishUnited KingdomMod-X6840941.23%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...
76EnglishUnited KingdomDefend the Web8386656027.04%56.25%91.67%An interactive security platform where you can learn and challenge your skills.
74EnglishIrelandIRISSCON 2012 Lost Challenges50.00%87.50%This site includes the challenges I made for IRISSCON 2012 CTF. However due to the large number of submissions, these...
73EnglishBelgiumTasteless100.00%100.00%Tasteless challenges, several levels that will test you in security and logical thinking
72EnglishFranceNo Such Con 2013000.00%50.00%50.00%The HES/NSC 2013 challenges. Still available thanks to Steven from overthewire.org!
70EnglishUnited StatesOverTheWire.org-117116.67%65.97%97.50%The wargames offered by the OverTheWire community can help you to learn and practice security concepts in the form of...
65EnglishUnited KingdomCanYouHack.It75.00%100.00%CanYouHack.It is a security based challenge site where members get to show of their skills, learn new ones and socialize...
64EnglishUnited Stateswixxerd.com62.50%66.67%A collection of crackme's, hackme's, puzzles and games. Some are pretty simple, some... not so much...
63EnglishSpainYoire25.00%33.33%Wargame oriented site for having fun and learn hacking :)
61EnglishGermanyRedTigers Hackit-11048.27%75.00%95.00%10 SQL Injection challenges. After the final level you can put yourself into the hall of fame. No registration possible.
60EnglishKorea, Republic OfReversing.Kr344682752.69%50.00%50.00%This site tests your ability to Cracking & RCE (Reverse Code Engineering).
59EnglishAntarcticathebackupbox87.50%100.00%Your description is invalid. It has to be 12-4096 characters long.
58EnglishUnited StatesValhalla56.25%100.00%Valhalla is a place for sharing knowledge and ideas. Valhalla allows users to submit code, as well as science,...
57EnglishUnited StatesSecurity Override50.00%75.00%Here at SecurityOverride, we offer pen-testing tutorials, hacking challenges, security articles, security forums,...
53EnglishUnited StatesEnigmaGroup75.00%66.67%Since 2005, Enigma Group has been providing its members a legal and safe security resource where they can develop their...
50EnglishHungaryGekkó12691040.75%62.50%56.25%You play the role of a special agent and help your boss, colleagues and friends to tackle down problems in various areas...
49EnglishUnited KingdomRevolution Elite375219813.60%75.00%83.33%A site based on a detective theme which uses suspect elimination, clues, and more traditional challenge categories to...
48EnglishFranceW3Challs33950987.02%78.57%87.50%0% simulation & guessing. Hacking challenges only! Wargames (from classic linux/x86 to hardened kernel exploits),...
47EnglishPolandSPOJ119276170011.11%62.50%18.75%SPOJ (Sphere Online Judge) is an online judge system with 2000 programming challenges. The solutions to challenges can...
45EnglishPolandSecurity Traps100.00%100.00%The newest Polish professional challenge site. We focus on quality, difficulty and originality of the tasks, not...
44EnglishAustraliaCryptoLib50.00%50.00%CryptoLib is a challenge site focused on cryptography only. It currently offers 11 crypto challs which seem quite...
42EnglishNetherlands, TheTHC Hack Challenges50.00%25.00%THC is a hack challenge and tournament site for newbies and more advanced hackers. You start off with the easier...
39EnglishSwitzerlandAstalavista65.62%72.73%Astalavista.com - Home of the fiendish challenges
38EnglishNetherlands, Thelistbrain.tk94577114.42%58.33%68.75%Another english site
37EnglishUnited StatesCSTutoringCenter39.70%68.05%CSTutoringCenter.com provides many different kinds of challenges. You are free to solve them in any language and with...
36EnglishTurkeyRoseCode53.57%71.43%This site publishes mostly math based programming challenges. Other topics include Crypto, Brainfck, Hacking, and...
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