Caution! This is for tablet devices and only supports landscape orientation.

It is a turn-based card game using cards with numbers and symbols (+, -, ×).

You can use + cards to increase your score, or - cards to attack your opponent.

You can play single-player with a computer, or multiple people can play on one device.

(Multiplayer via the Internet is not supported.)

It supports Korean language. If it appears in English, click "Settings" on the bottom toolbar, change the Language item to "Korean", and click "Apply".

It does not use Internet-related functions.
(In the future, functions such as scenarios will be provided via the Internet.)