Sat, 12 April 2025, 00:00 UTC — Mon, 14 April 2025, 00:00 UTC 
On-line
A DEF CON CTF Qualifier event.
Format: Jeopardy 
Official URL: https://nautilus.institute/
Future weight: to be determined
Event organizers
On-line, open-registration.
Finals will be held August 2025 at DEF CON in Las Vegas.
