Install kblackbox by entering the following commands in the terminal:
sudo apt update sudo apt install kblackbox
Description:
Black Box puzzle game
KBlackBox is a game of hide and seek played on an grid of boxes, where the player shoots rays into the grid to deduce the positions of hidden objects. . This package is part of the KDE games module.
Homepage: http://games.kde.org/
Version: 4:17.12.3-0ubuntu1
Section: universe/games