Those are the zombies game from the Curse Village series. It’s usually a defense game where you must use your weapons to defend your barricades from attacking zombies.
There are 3 posts tagged with Curse Village (Series) here.
Curse Village 2: Reawakening is the second installment of the cool defense series Curse Village. Here, you will defend your village again from the stupid, stinky invading zombies by unloading your guns at them.
Curse Village 3 is a defense-style shooter where the stick zombies have arrived and you're put behind the barricades the fight off the undead. Defend your village in 15 levels from the invading undead!
Curse Village is a defense-style shooter where you have to make your stand against waves of the undead in a brave attempt to save your village. There's no escape, fight back or become one of them!
Drop balls in columns and create groups of 3 or more of the same balls to remove them from the game. Use the spacebar or mouse button to drop the balls.