June 2020
To put things bluntly, I did this:
Now my game won't even start. The GA icon appears in the tray for a few seconds, then closes. The crash log says "Access violation occured at 0x00000000000." I tried uninstalling both Spore and GA, including deleting the registry keys, and redownloading. That did nothing. How do I completely remove any trace of Spore so I can have a clean reinstall? (Ideally without removing my save data. I worked hard on that, dang it!)
Note: I did not actually install any mods.
June 2020
Never mind, managed to unscrew myself. Reinstalled Origin since I read that it deletes your downloaded games, and it works now. Sweet.