A beginner-friendly, community CTF hosted at Cherry Creek High School with creative challenges and a welcoming atmosphere
CreekCTF is a community-driven Capture The Flag competition hosted at Cherry Creek High School. It emphasizes creativity, learning, and fun, and is designed to be beginner friendly while still engaging for experienced players.
First held in 2025 with 8 teams, CreekCTF runs once a year in April–May for about five hours. Teams are typically 2–4 people. The competition features a mix of traditional CTF categories with innovative twists and creative storytelling in an inclusive environment where participants can learn new skills while having fun.
Exploit web applications and find hidden flags
Solve encryption puzzles and cipher challenges
Find hidden messages in images and files
Use open source intelligence to gather information
Analyze programs to understand their functionality
Creative challenges that don't fit other categories
Challenges often come with engaging narratives and themes
Emphasis on learning and helping each other grow
Challenges range from beginner to advanced levels
Often features innovative problem types not seen elsewhere
Creative thinking and analytical skills
Programming, networking, and security concepts
Working effectively in teams under pressure
Connect with other participants on Discord or forums
Learn fundamentals of web security, cryptography, and programming
Many past challenges are available for practice
Collaborate with friends or join our club team
Join our cybersecurity club and participate in CreekCTF competitions. Perfect for students who want to learn in a supportive, creative environment!