Developer Ngmoco has announced that on March 31 they will be shutting down servers for We Rule, GodFinger, Touch Pets Cats, and Touch Pets Dogs 2. Because those games are server-based, that means you won’t be able to play them at all following the shutdown.
All of the affected games will be removed from the App Store on February 1, so if you want to build a town, create worshippers, or own a digital pet, you’d better download the games now. They’ve already shut down in-app purchases in all of the titles, presumably to stop people from buying currency, not using it, and complaining about it. If you have any currency left in those games, make sure to use it soon, or it will be gone forever on March 31.