Top 5 Crafting Games
Free to Play (F2P) Games
Pay to Play (P2P) Games
Trail Account Games
Browser Games

Browser Games have taken off fast. Umong the more popular "crafting" games is Farmville. While not exactly a crafting game, you progress through development of your Farm. As with other F2P games, Browser Games are playable without spending money on them. People who enjoy the game they play will spend money to get items that are useful to them in the game. While I haven't explored many, I will begin adding Browser Games to this page soon.