CSCTF 2026, subtitled "Total Warfare," is a free 48-hour international jeopardy-style CTF now running its second edition, after last year's contest drew more than 600 players from over ten countries. Its challenges are built around scenarios echoing critical infrastructure, national defense, and the tactics used by modern adversaries, with more than 40 puzzles spanning web, pwn, crypto, reverse engineering, forensics and operational security. It's a solid pick for players who want scenario-driven challenges rather than a random grab-bag of puzzles.
// source: ctftime.org ↗