This is absolutely nothing but a shitty indie dev grasping at straws.
Yeah no. Sorry but if you believe at this point that this is really an indie company, you're a very bad observant.
Just look at the Abandoned app, first thing you see is support for something like 7 languages, the order in which they are presented looks very industry standard, and if you try different languages in the following screen the translations for the only message in the app as of now, also read really professionally made.
Why is this important you ask? Well I'm myself an indie developer myself, looked at several indie games, and I know the workflow of several indie companies... you can tell this app was not made by indies.
Indies do not prioritise localisation in the slightest, if they did they'd prioritise the languages most known by the team members, and often they'd either google translate them or involve their community.
Now Blue Box is allegedly a dutch studio, if you look at games from the average dutch studio, they usually only have English or English and Dutch, but in the Abandoned app 'Nederlands' if listed 4th or 5th I think, which is more in line with the industry standard that you see in your average triple A game.
Now of course, they might have just copied the order from any triple A game, but then again why wouldn't any indie company do that then? Because actually localising the game for all those languages is expensive, and in an indie company you usually find only core game developers, rather than people with that kind of expertise. And since indie games are usually very niche and those companies can't afford global marketing in the first place, localising the game would almost always be a bad investment of money and time.
So if you take this, which I'm sure you'll call out as nitpicking, but being experience in this field I am sorry do disagree with you, but it's absolutely not, and combine facts like that Sony wouldn't give all this exposure (when I opened PS Store it was literally the 3rd game on the top bar) to an indie company which only released a broken prototype on Steam, that no indie company would have the manpower to create this kind of never seen before demo app just to promote their title, that they made a trailer using placeholder assets clearly to create an history for their project without giving away anything concrete about it, that the only person from this team we ever saw was that Kahrameran guy or however his name is spelled, that the Blue Box twitter account is giving hints upon hints, and all the other things surrounding this title. I am sorry but if after all of this you still believe into the narrative that this is just an indie, you're just fooling yourself.