What happens to my games if I downgrade?

When you move from Plus to Free (by canceling, after the period ends), your content isn't thrown away — it's set aside:

• Custom patterns, programs, and game preferences are kept but become read-only/inaccessible while you're on Free. They all come back the moment you re-subscribe to Plus.
• Saved and past sessions are hidden from your lists. The last 14 days of sessions remain visible and accessible for 14 days, re-upgrading restores your entire history.

So if you think you'll be back, re-subscribing within two weeks brings everything back exactly as it was.