Before 1.0
The game can change quickly. Features, saves, balance, and compatibility may not be stable yet.
Version numbers identify a build and the size of a change. The game's page or store listing tells you whether it is a prototype, in development, or released.
Read 1.4.2
The game can change quickly. Features, saves, balance, and compatibility may not be stable yet.
Major, minor, and patch numbers describe the scale of an update.
A version number is not a release promise. Some games keep their development numbering after launch: DVD Survivors launched at v0.7.3 and is fully released.