Of course the Japanese popular mobile games use it. These are collabo-cafe and bar of Colopl's popular mobile games Shironeko Project(白猫プロジェクト).
The price is 600yen - 700yen. To be frank, it's expensive, but is common for the collabo-cafe. Because...
"Bonus" is attached to it. Fans can get the coaster of game characters at random whenever they order menus.
In addition, sojourn time per once is set a limit by 90min. They may enjoy it enough.
Furthermore, various goods are sold in the cafe. In them, the special goods to be able to buy only here are included.
In other words, Collabo-cafe is a place for interchange between fans. It will be surely fun if they can talk with somebody about own favorite game and its characters at such a place. This Collabo-cafe is held until May 30. Infomation is here(Japanese).