Offical URL:

Jeopardy style CTF held at the Converge Detroit Conference (
Many challenges can be solved online but there are challenges that can only be solved while at the convention and/or connected to the game network.
Know Challenge categories: History, encoding/encryption, reverse engineering, radio, forensics, wifi, logs, network, Lock picking, CANBus, and some scavenger hunts around the convention space.

CTF events

CTF 313 202020.71
CTF 313 201920.71
Related tags: web pwn trivia crypto forensics base64 misc re sandbox coding nothing stuff base32 morse gameboy beginner language hash logs md5 encryption encoding rfc binary rot13 ntlm honeypot rot md2 lmao badge trophy tutorial