.. _gameplay_intelligence: Intelligence ============ Intelligence is a :ref:`stat <gameplay_stats>` that is unlocked by having :ref:`Source-File 5 <gameplay_sourcefiles>` (i.e. Destroying BitNode-5). Intelligence is unique because it is permanent and persistent. It never gets reset back to 1. However, gaining Intelligence experience is extremely slow. It is a stat that gradually builds up as you continue to play the game. Intelligence will boost your production for many actions in the game, including: * Hacking * Infiltration * Crime success rate * Bladeburner * Reputation gain for companies & factions * Augmentation grafting speed