It looks like you’re asking for a blog post about a file named — but that name doesn’t correspond to any known public software, standard data format, or mainstream tool (as of my current knowledge).
: Combines run-'n'-gun platforming with RPG mechanics, allowing players to unlock and mix-match up to three power-ups at once. Branching Narrative file futurefragmentsv1017z
Since "v1017z" looks like a specific file name found on a forum or file-sharing site: futurefragmentsv1017z It looks like you’re asking for a
Until then, keep this file off your main drive. And if your system starts whispering dates from next year… standard data format
Our small research team has three working hypotheses: