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XIII Century is a series of real-time tactics computer video games developed by Unicorn Studio and released in 2007. The series consists of the titles "XIII Century: Death or Glory", its stand-alone expansion "XIII Century: Blood of Europe", and a "XIII Century: Gold" release, which combines the two titles. The games are similar in interface and game play to those of the Total War series but feature a more complex battle mechanism, in which results are calculated for each individual soldier in the units and the corps mechanics are more realistic. The units possess different grades of AI (called "Self Control"), which give them the capability to evaluate the situation: a low-Self Control unit demands more management by the player.