A sentient robot of unknown origins, ISAAC is discovered by Mitchell early on in his adventure. Although suffering from a critical memory loss when Mitchell finds him, ISAAC is insistently helpful, and quickly decides to accompany him on his mission.
Built as an [Intelligent Scouting And Assistance Construct], ISAAC’s primary function is to gather information and offer combat assistance to whoever is in need of it. Although relatively fragile in design, ISAAC possesses the ability to learn abilities from hostile constructs and lifeforms by analyzing their combat tactics – making him a valuable ally in a fight.
ISAAC is helpful, pragmatic and loyal – a consistently useful ally to Mitchell throughout his adventure.