The key to succeeding in the Roblox game Grow a Garden is to have rare items. The rarer the crop, pet, or item, the better—and more valuable—the crop that results from it. One way to obtain rare items ...

Roblox's "Own a Fish Pond" has become an instant hit for aquarium fans. The addictive game lets players purchase fish eggs from stores, raise them in their pond, and sell the grown fish at a profit.