What is this biweekly update for?

[dree74]

every 2-3 weeks Tropico 3 is updating yet i have no clue what is being updated. any info please?

[Sa-Matra]

No updates of any kind here. This is steam problem on your side probably.

[brod]

There's a chance that your HDD is failing. If files are becoming corrupted, Steam will redownload them.