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Sussmanashi no Naku Koro ni (すさまなしのなく頃に, Susamanashi no Naku Koro ni, commonly abbreviated as SNAK) is an adult Japanese visual novel developed by /prog/ which will be released as a limited edition on January 3rd, 2038 playable on the PC. Sussmanashi no Naku Koro ni began as a series of prelude short scenarios in the /prog/ fandisc SICP no Shana. The gameplay in Sussmanashi no Naku Koro ni follows a plot line which offers pre-determined scenarios with courses of interaction, and focuses on the MIT course 6.001 and the book Structure and Interpretation of Computer Programs (SICP).
Sussmanashi no Naku Koro ni incorporates actual slides from the 6.001 lectures and SICP exercises which have to be answered correctly in order to get the good ending.
SNAK centers around the period in which the protagonist, Grun Ur, enters the Massachusetts Institute of Technology (MIT) after moving to America from Japan. Most of the main stories revolve around the magical Y combinator and its powers.