The programming puzzle game TIS-100 was developed by Zachtronics and was first released in July 2015 for Windows, macOS, and Linux platforms, with an iPadOS port released in January 2016.
Players can print the TIS-100 reference manual provided by the game, which details the internal workings of the TIS-100, reviving the artistic aesthetics of computer guides from the 1980s.
Players must repair a fictional malfunctioning computer by writing code in a simplified assembly language for the machine’s 12 processing nodes, completing tasks such as data transfer and calculations to match preset outputs. The difficulty of the puzzles gradually increases, with later levels introducing stack nodes, color graphics displays, and supporting code debugging to troubleshoot logical issues. The game includes three sandbox modes where players can customize challenge levels; it features a leaderboard to compete with players worldwide on code execution efficiency; and it comes with a retro-style game manual that aligns with the early computer setting while guiding players in familiarizing themselves with the operations, combining fun and educational elements. The storyline unfolds through mysterious notes found in the malfunctioning modules, gradually revealing the secrets of this peculiar computer; the game does not have traditional level divisions but progresses through a series of interconnected puzzles, providing a strong sense of achievement upon solving them, making it ideal for programming enthusiasts or players who enjoy logical challenges.
