Doomsday Archiver

Complete all challenges and fully dismantle the Doomsday Archiver operation.

Doomsday Archiver

Escalate privileges without using any hints.

Doomsday Archiver

Complete the privilege escalation challenge on your first attempt.

Doomsday Archiver

Successfully crack the pseudocode vulnerability to escalate privileges.

Doomsday Archiver

Escalate privileges in under 20 minutes.

Doomsday Archiver

Complete the Archive Gate challenge on your first attempt.

Doomsday Archiver

Successfully breach the Archive Gate by exploiting the repository handling flaw.

Recipe Riddle Chase

Recipe Riddle Chase

Enigmatrail

Enigmatrail

Enigmatrail

Enigmatrail

Enigmatrail

Enigmatrail

Enigmatrail

Send the Alien back home

Send the Alien back home

Send the Alien back home

Send the Alien back home

Digital Elysium

Digital Elysium

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Wedding Fusion

Send the Alien back home

Send the Alien back home

Complete 1000 quizzes in 1m. Speed achievement.

Win 100 quizzes in a row without any failures. Streak achievement.

Win 50 quizzes in a row without any failures. Streak achievement.

Complete 1000 quizzes in 1y. Speed achievement.

Complete 1000 quizzes. Milestone achievement.

Complete 250 hard difficulty quizzes. Difficulty mastery.

Complete 50 quizzes in 5 different topics. Advanced cross-training.

Complete 10 normal quizzes in 42 different topics. Normal difficulty breadth achievement.

Complete 10 easy quizzes in 42 different topics. Easy difficulty breadth achievement.

Complete 250 quizzes in any single major topic. Topic depth achievement.

Complete 25 quizzes successfully after experiencing a failure. Bounce back stronger!

Win 25 quizzes in a row without any failures. Streak achievement.

Complete 100 hard difficulty quizzes. Difficulty mastery.

Complete at least 1 quiz per day for 14 consecutive days. Daily streak achievement.

Complete 10 hard quizzes in 42 different topics. Hard difficulty breadth achievement.

Complete 10 hard quizzes in 20 different topics. Hard difficulty breadth achievement.

Complete 1 hard quiz in 20 different topics. Hard difficulty breadth achievement.

Complete 50 hard difficulty quizzes. Difficulty mastery.

Complete 100 quizzes between 05:00-08:00 (early morning). Rise and conquer at dawn!

Complete 10 hard quizzes in 10 different topics. Hard difficulty breadth achievement.

Complete 50 hard quizzes in 10 different topics. Hard difficulty breadth achievement.

Complete 100 hard quizzes in 10 different topics. Hard difficulty breadth achievement.

Complete 1 hard quiz in 10 different topics. Hard difficulty breadth achievement.

Complete 25 hard difficulty quizzes. Difficulty mastery.

Complete 500 quizzes in 1m. Speed achievement.

Complete 10 hard difficulty quizzes. Difficulty mastery.

Get 100% on 10 hard difficulty quizzes. Perfect score achievement.

Complete 250 normal difficulty quizzes. Difficulty mastery.

Complete 500 quizzes in 1y. Speed achievement.

Complete 500 quizzes. Milestone achievement.

Complete at least 1 quiz per day for 7 consecutive days. Daily streak achievement.

Complete 1 normal quiz in 20 different topics. Normal difficulty breadth achievement.

Complete 10 normal quizzes in 20 different topics. Normal difficulty breadth achievement.

Complete 50 quizzes between 05:00-08:00 (early morning). Rise and conquer at dawn!

Complete 10 quizzes in 10 different topics. Advanced cross-training.

Complete 100 quizzes in 1d. Speed achievement.

Complete 25 quizzes in 5 different topics. Advanced cross-training.

Complete 100 normal difficulty quizzes. Difficulty mastery.

Complete 1 normal quiz in 10 different topics. Normal difficulty breadth achievement.

Complete 10 normal quizzes in 10 different topics. Normal difficulty breadth achievement.

Complete 50 normal quizzes in 10 different topics. Normal difficulty breadth achievement.

Complete 100 quizzes in any single major topic. Topic depth achievement.

Complete 50 normal difficulty quizzes. Difficulty mastery.

Complete 50 quizzes in 3 different topics. Advanced cross-training.

Complete 250 easy difficulty quizzes. Difficulty mastery.

Complete 250 quizzes in 1m. Speed achievement.

Get 100% on 250 different quizzes. Perfect score achievement.

Complete 250 quizzes. Milestone achievement.

Complete 200 quizzes in 1w. Speed achievement.

Get 100% on 200 quizzes in 1m. Elite achievement.

Complete 50 quizzes in any single major topic. Topic depth achievement.

Complete 25 quizzes in 3 different topics. Advanced cross-training.

Complete 25 normal difficulty quizzes. Difficulty mastery.

Complete 1 easy quiz in 20 different topics. Easy difficulty breadth achievement.

Complete 10 easy quizzes in 20 different topics. Easy difficulty breadth achievement.

Complete 10 quizzes in 5 different topics. Advanced cross-training.

Complete 100 quizzes in 3d. Speed achievement.

Complete 100 quizzes in 1w. Speed achievement.

Complete 100 quizzes between 22:00-06:00 (night time). Master quizzes while others sleep!

Complete 100 quizzes in 1m. Speed achievement.

Complete at least 1 quiz per day for 3 consecutive days. Daily streak achievement.

Complete 50 quizzes in 6h. Speed achievement.

Complete 50 quizzes in 1d. Speed achievement.

Complete 100 easy difficulty quizzes. Difficulty mastery.

Complete 75 quizzes in 3d. Speed achievement.

Complete 25 quizzes in any single major topic. Topic depth achievement.

Get 100% on 100 different quizzes. Perfect score achievement.

Complete 100 quizzes. Milestone achievement.

Get 100% on 50 quizzes in 1w. Elite achievement.

Complete 50 quizzes in 2d. Speed achievement.

Complete 50 quizzes in 1w. Speed achievement.

Win 15 quizzes in a row without any failures. Streak achievement.

Complete 50 quizzes between 22:00-06:00 (night time). Master quizzes while others sleep!

Complete 10 quizzes successfully after experiencing a failure. Bounce back stronger!

Win 10 quizzes in a row without any failures. Streak achievement.

Complete 25 quizzes in 3h. Speed achievement.

Complete 10 easy quizzes in 10 different topics. Easy difficulty breadth achievement.

Complete 50 easy quizzes in 10 different topics. Easy difficulty breadth achievement.

Complete 1 easy quiz in 10 different topics. Easy difficulty breadth achievement.

Complete 10 quizzes in 3 different topics. Advanced cross-training.

Complete 25 quizzes in 2d. Speed achievement.

Complete 25 quizzes in 1w. Speed achievement.

Complete 25 quizzes in 1d. Speed achievement.

Complete 15 quizzes in 6h. Speed achievement.

Get 100% on 20 quizzes in 1d. Elite achievement.

Complete 50 easy difficulty quizzes. Difficulty mastery.

Get 100% on 50 different quizzes. Perfect score achievement.

Complete 50 quizzes. Milestone achievement.

Complete 10 quizzes in 1h. Speed achievement.

Complete 10 quizzes in 3h. Speed achievement.

Complete 10 quizzes in 1d. Speed achievement.

Complete 25 easy difficulty quizzes. Difficulty mastery.

Complete 10 normal difficulty quizzes. Difficulty mastery.

Get 100% on 10 normal difficulty quizzes. Perfect score achievement.

Get 100% on 6 quizzes in 1h. Elite achievement.

Complete 5 quizzes successfully after experiencing a failure. Bounce back stronger!

Win 5 quizzes in a row without any failures. Streak achievement.

Complete 5 quizzes in 1h. Speed achievement.

Complete 5 quizzes in 1d. Speed achievement.

Complete 3 quizzes in 1h. Speed achievement.

Complete 100 easy difficulty problems. Difficulty mastery.

Complete 100 problems using Python. Language mastery.

Complete at least 5 problems in 8 different categories. Topic breadth.

Complete 30 problems between 05:00-08:00 (early morning). Early bird achievement.

Complete 100 problems in 3m. Speed achievement.

Complete 100 coding problems. Milestone achievement.

Complete 15 problems successfully after previous failures. Resilience achievement.

Complete 30 problems between 22:00-06:00 (night time). Night coding achievement.

Complete 5 problems after 3+ attempts. Shows learning and persistence.

Complete 25 problems in any single topic category. Topic depth.

Complete 50 problems in 1m. Speed achievement.

Complete 10 problems successfully after previous failures. Resilience achievement.

Complete 15 problems between 22:00-06:00 (night time). Night coding achievement.

Complete 10 problems with at least 2 attempts each. Persistence achievement.

Complete 50 easy difficulty problems. Difficulty mastery.

Complete 50 problems using Python. Language mastery.

Complete 50 coding problems. Milestone achievement.

Complete 5 problems between 22:00-06:00 (night time). Night coding achievement.

Complete 15 problems in any single topic category. Topic depth.

Complete 5 problems successfully after previous failures. Resilience achievement.

Complete 20 problems in 1m. Speed achievement.

Achieve average memory usage < 25.0MB across 25 problems. Memory efficiency.

Complete at least 3 problems in 5 different categories. Topic breadth.

Achieve average execution time < 0.1s across 25 problems. Speed efficiency.

Complete 15 problems between 05:00-08:00 (early morning). Early bird achievement.

Complete 30 problems with clean solving patterns. Anti-cheat champion.

Pass all 7 testcases on first attempt for 25 problems. Perfect submission achievement.

Complete 25 easy difficulty problems. Difficulty mastery.

Complete 25 problems using Python. Language mastery.

Complete 3 problems after 3+ attempts. Shows learning and persistence.

Complete 20 problems in a row without failures. Winning streak achievement.

Complete 10 problems in any single topic category. Topic depth.

Complete 25 coding problems. Milestone achievement.

Achieve average memory usage < 25.0MB across 10 problems. Memory efficiency.

Achieve both execution < 0.1s AND memory < 25.0MB across 10 problems. Optimal code.

Complete 15 problems in a row without failures. Winning streak achievement.

Achieve average execution time < 0.1s across 10 problems. Speed efficiency.

Complete 5 problems between 05:00-08:00 (early morning). Early bird achievement.

Complete 10 problems in a row without failures. Winning streak achievement.

Complete 15 problems with clean solving patterns. Anti-cheat champion.

Complete 15 coding problems. Milestone achievement.

Pass all 7 testcases on first attempt for 10 problems. Perfect submission achievement.

Complete 10 easy difficulty problems. Difficulty mastery.

Complete 10 problems using Python. Language mastery.

Achieve average memory usage < 25.0MB across 5 problems. Memory efficiency.

Achieve both execution < 0.1s AND memory < 25.0MB across 5 problems. Optimal code.

Complete at least 2 problems in 3 different categories. Topic breadth.

Complete 10 problems in 1w. Speed achievement.

Complete 5 problems in any single topic category. Topic depth.

Complete 10 coding problems. Milestone achievement.

Achieve average execution time < 0.1s across 5 problems. Speed efficiency.

Complete 6 problems in 1w. Speed achievement.

Pass all 7 testcases on first attempt for 5 problems. Perfect submission achievement.

Complete 5 problems in a row without failures. Winning streak achievement.

Complete 5 easy difficulty problems. Difficulty mastery.

Pass all 7 testcases on first attempt for 3 problems. Perfect submission achievement.

Complete 5 coding problems. Milestone achievement.

Complete 3 problems in 1d. Speed achievement.

Complete 3 problems in a row without failures. Winning streak achievement.

Complete 2 problems in 1d. Speed achievement.

Complete 3 coding problems. Milestone achievement.

Pass all 7 testcases on first attempt for 1 problem. Perfect submission achievement.

Complete 1 coding problem. Milestone achievement.