Board Thread:Questions and Answers/@comment-197.89.72.65-20150406115440/@comment-1073312-20150406120124

I haven't played Spore in a while (the wiki is still active, but ironically, few of us are very active in Spore), but from memory, the game tends to download all creations at random, even when I applied filters and sporecasts.

If you ever have to uninstall and reinstall the game in the future, there are ways to move your saved games over.