I got similar case of loosing a game but different circumstances. But it has to do with Unity. I have worked on a tank game for half a year. It was supposed to be 3d battle city sort of.
But then my life did a flip and I didn’t have time to work on it anymore.
Few years passed and my life was steady enough to come back to writing games.
And idiot of me I haven’t checked out that unity have phased out their cloud saves and ad integration… So eventually my whole game got corrupted and no amount of time and prying that crap out helped. I had to abandon it. I also abandoned Unity for Phaser.