If I had a dollar for every time I saw someone think a version number is an indication of a percentage complete, I'd have a decent amount more money.
Version numbers have no standardization, and most often have nothing to do with the length of time a game has been in development or how much time is left before completion. You can have a game go from version 0.6 to a v 1.0 release, or it could go from 0.9 to 0.10. Most of the time a version number is NOT a decimal, the period is simply separating the parts. In the most common type of version numbering the first section is usually a 0 or 1, to indicate either a prerelease or post release version. Then there's a period, followed by a number to indicate a major update, which can last literally hundreds of versions depending on the developer and project. Then there's often a third section with a period and another number or (less commonly) a letter, which indicates a bugfix / minor update.
