SCP Architect X is a tycoon-style game in the SCP universe where players build a facility and generate revenue from test subjects. Currently, there are no active codes for the game, but three codes have recently expired: 1-5milEZ, dataSavingSorry, and thxFor1kCCU. To redeem codes, players must complete the tutorial, then access the 'Shop' menu, select the 'Codes' tab, input a valid code, and hit 'Submit.' Skipping the tutorial is not possible, but it can be completed quickly. New codes are typically released on the SCP Architect X Discord server, and players can stay updated by checking back regularly.