icebreaker(6) on Linux
The text 58517c1161d1, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
An addictive action-puzzle game for X.