Raining Shells is a free Android game developed by Idearift Games. It is a strategy game that takes place during World War 1, where you become the commander of the British troops. Your mission is to assault the German trenches and lead your army to victory. The game offers a unique experience of trench warfare, with each trench presenting a new challenge for your army.

The game features four different units - Private, Officer, Flamethrower, and Sniper - each with its own strengths and weaknesses. You can also call for support from artillery and equip your troops with gas protection masks to survive gas attacks. The game also includes bunkers and German stormtroopers for added challenge.

Overall, Raining Shells is an excellent strategy game that offers a realistic experience of World War 1 trench warfare. If you are a military history enthusiast, this game is definitely worth checking out. However, it should be noted that the game is only available on Android.