Cross Virus is a free puzzle game that challenges players to prevent the growth of viruses by strategically placing blocks on the board. Developed by DAN-BALL, this game is the 19th smartphone game released by the popular web game site.

In Cross Virus, players must place blocks on the board to prevent the virus from growing in a cross direction. After placing three blocks, viruses will start to grow. The goal is to minimize the number of viruses by placing blocks in the right locations. The game ends when the virus can no longer grow. With its simple yet challenging gameplay, Cross Virus is a great choice for puzzle game enthusiasts who enjoy a good brain teaser.