Pentris

Pentris is a Pentomino-based puzzle game. Originating on Earth some indeterminate amount of years ago, Pentris remains the most popular stack-management puzzle game and anger generator across the galaxy. It consists of falling pentominoes (every permutation/arrangement of 5 or less blocks) that must be stacked to create lines. Once a 12-wide line has been created, it disappears.

In the 41st century, Pentris is available for most systems, such as cybernetics, terminal computers, and Holopads. A dedicated group of hackers are known for porting the game onto unconventional platforms, such as holographic advertisement billboards and ship marquees.