spacezero binary package in Ubuntu Bionic s390x

 SpaceZero is a Real Time Strategy 2D space combat, multiplayer (two players by
 now) net game.
 .
 The objective is to conquer the space, defeating all enemies.
 .
 At starting point you have only one ship and one planet, but you have gold to
 buy more ships to conquer more planets.
 .
 All the ships can be controlled by the computer (automatic mode) or by the
 player (manual mode).
 You can easily change among your ships controlling all of them independently.

Source package