Like SCP-087-B, Regalis choose to use the Blitz3D engine for SCP - Containment Breach as he was already familiar with the program, meaning he would be able to easily create and troubleshoot the game. Development on what would later become SCP - Containment Breach began around March 2012. The game received much more praise and attention than Regalis had expected, resulting in many people suggesting that he should try creating another SCP-based game with more content to it. This eventually lead to the creation and release of SCP-087-B on January 30th, 2012.

The game became a viral success, catching the attention of Regalis, who became inspired to create a more varied version of the game which deviated from SCP-087's original article. On January 19th, 2012, a YouTube user who goes by the name of 'Haversine' released a short clip of an experimental game they are working on called SCP-087, based upon the SCP of the same name. The game (which I named SCP-087-B) got way more popular than I could have even imagined, and people started suggesting that I should make a more extensive game of some other SCP, with gameplay that isn't just walking down stairs.

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