Hackers Congress Paralelní Polis (HCPP) is the flagship event of Paralelní Polis, which since 2014 has been regularly attended by over 500 fans and IT experts from all over the world. HCPP is held annually in Prague on the first weekend of October.

The main thematic pillars of the three-day congress are Freedom & Cryptoanarchy, Decentralized Economics, & Cryptocurrencies, Political Art & Hacking, and Science & Technology.