Age.of.wonders.planetfall.star.kings-codex.part...

This update introduced a new way to play the game across multiple sessions:

You can conquer various planets to build your own "Galactic Empire." Age.of.Wonders.Planetfall.Star.Kings-CODEX.part...

If you are trying to install the "part" files you mentioned, ensure all numbered parts (part1, part2, etc.) are in the same folder before extracting the first one. However, for the most stable experience and access to the Galactic Empire online features, the official version is available on platforms like Steam or GOG . This update introduced a new way to play