Carrom is a tabletop board game that is hugely popular in South Asia. It plays a little like billiards on a square board: instead of a cue, you flick a heavy disc called the striker to knock smaller pieces into the four corner pockets. This version is made for two people on the same device, taking turns at the board.
On your turn, slide the big white striker along your side of the board to choose where to shoot from. Pull it back to set the direction and strength, then let go. The aim is to pocket the playing pieces into the corner holes. Black and white pieces are worth different points, and each player's score is shown on the left and right of the screen. A careless shot can cost you, because some pots count as fouls. Take turns until all the pieces are gone, and the higher score wins.