I made the Backrooms game back in 2019 when there was no article or “concept” as you talked about. This game is based on a 4 chan post, which only had a picture! All those lore stuff came after I published the game.
Even though now that many users want a game that respects that lore, I decided to work on a new free game that will be based on the new articles and wiki pages of Backrooms.
Since that game is going to have an online multiplayer and possibly be published on the Steam platform, it is going to cost some money and take note that I work alone. That’s why I appreciate the generosity of those who help me develop this free game with donations.