Because there was the last update in January?
OBD 0.1.3 was removed from here but you can download the game from https://linktr.ee/keyclap
Batch payments are restricted for adult games and this makes game devs need to take single payments from purchasers. This is for all platforms except Steam and G.O.G....from my research kids were buying games underage and some dumb law is now being cooked/forced. Need to research further, but doesn't seem legal.