This is a paid asset, but now you can download Casual Game Basic Icons Set Free.
Detail this asset from creativemarket: Original Link
Casual Game Basic Icons Set
This Icon set has all the icons you need to start making UI for for any casual, mobile, or social game.
Set includes all the icons you see here, and you can create more by combining them according to your needs, as well as changing colors to customize them and make them your own.
This set is 100% vector and was created entirely in Adobe Illustrator. It’s fully scaleable, with unlimited resolution.
All fonts used are free!
Helpful Read Me file included with information about how to use this file.
This Icon Set is guaranteed to work flawlessly for illustrator CS6-CC but should also meet most of your needs with use in CS4-CS5.
Please do not hesitate to contact me if you encounter any issues and I will do my best to promptly resolve your problem.