Espilon CTF is a hardware-first Capture The Flag focused on embedded systems, IoT, and real-world devices.

The ESP32 is at the core of the experience. Many challenges involve firmware analysis, flashing, hardware interfaces (UART, GPIO, SPI, I²C) and embedded protocol exploitation.

You can participate without an ESP32 — but you will miss a large part of the CTF. Some challenges are hardware-dependent, and others are significantly easier and more interesting with the device in hand.

Espilon CTF is designed to bridge software and hardware hacking, with realistic scenarios and hands-on problem solving.