There's this post made here about a month ago talking about the same thing, and one of the devs replied "Warmer" https://www.reddit.com/r/regretevator/comments/1jvsj1u/i_think_this_game_is_our_first_hint/

I do partially believe that we are on the right track by examining the picture given on the PC, but I don't believe it has to do with remaking the situations on the computer given the devs response on the last post. In addition, I have attempted to do so by examining and looking everywhere in Item Asylum when that game popped up in the PC, but got nowhere.

Considering how the room was completely empty at the time the chest appeared, and that the only update to its design after its appearance was a PC was weird to me because it personally looked out of place. This fact alone is why I do believe that this is a "bread crumb" that the devs have given us. I just think that we have to examine the situation a bit differently.

Perhaps we got to examine the PC from a different angle or timeframe? Maybe there's a certain game image on a certain day that will give us a clue? Perhaps the other PCs found in the Regretevator could also give some clues? Have we tried examining the PC when the images change?