Being one of the backers behind solving this humongous mystery of a project, I can in fact confirm that they aren’t who they claimed they were. Their entire team made LinkedIn profiles in an attempt to look more professional and once those were unearthed, it came out that only three of them were on STALKER’s team at all. And while one of them is the original game’s writer and lead designer, the other two mostly did some background work.
As for the rest of the team, most of them worked on browser games. Their listed PR Manager actually never worked in PR; most of her career is being a narrative director on Facebook and hidden object games. As for their CEO, Eugene Kim, he was an engine architect on STALKER 2 for a couple months. Aside of that, his only finished project in the game industry is Go Fishing Online for Facebook.
Finally, it’s worth noting that the only object in their in-game footage that wasn’t outed as Unity Store assets is the wrist-mounted gadget. A Ukrainian 3D artist eventually came out in the comments on a Russian website and said he was the one who made it. West Games approached him during their recruitment drive, had him make that gadget as “a test of his abilities,” but then never paid or contacted him again. Needless to say, he wasn’t very impressed by seeing his work in a Kickstarter pitch he isn’t connected to.