It is assumed that the developers checked the work of the mechanic on them at an early stage.
Several videos allegedly made in the early stages of the development of STALKER 2 in 2019-2020 were published in the VK community “Bar -” Twisted Stalker Tits “”.
According to the authors of the leak, these videos demonstrate the A-Life system, a test of the operation of anomalies and explosions. In the videos, you can see several locations used as a testing ground for testing game mechanics.
A blogger under the nickname Antishnaps said that the data was provided to him by someone under the nickname nexus03, who gained access to the Discord server of one of the employees of GSC Game World. As evidence, the author of the leak published a video in which he studies the server channels and downloads the information available there.
Several files, probably related to STALKER 2, also got into the network: old versions of the game logo and documents with references.
Earlier, the same source published possible screenshots from the STALKER 2 pre-alpha, which allegedly leaked from the same Discord server.