Ether 9:18-19 mention several of the different animals that the Jaredites found in the Promised Land. Among those mentioned were cureloms and cumoms (no image posted here; I didn't want to ruin the surprise). Have you ever wondered what they were exactly? Wikipedia has a small article about them (here). There's also a short article about them on dictionary.sensagent.com (here). Well, if you've ever wondered, www.mormonzone.com has the answer for you, and they've made it possible for you to adopt your own, virtually that is (here). Not technically a game, but it sort of fits the category of online game. And kids might enjoy it for 5 minutes or so.
The website also has some LDS news (made up, parody type news that is) and LDS jokes.