One or two players. Use a mouse or trackpad, keyboard (including Touch Bar), or 1-2 game controllers.

Steam version works on Mac (available for mobile and TV elsewhere); updated with support for all recent Mac hardware.

“Celtreos” is like the space shooters of decades past: tiny ship, big weapons, waves of foes, power-ups and obstacles.

Music, Sound and Voice

• 30 different songs (over 45 minutes of music!)

• You can even play your own music and auto-next-song for key game events

Stages

• 13 stages: a city, space station, ocean and more

• Horizontal scrolling but more than one “screen” of vertical space

• Start from any stage you want!

• Each stage ends with a challenging boss

• Wall layouts and spawn patterns are partially randomized

Weapon Arrays, Special Moves, Power-Ups and More

• Choose from a huge arsenal of weapons and special abilities

• 10 different ships to choose from

• Customize ship properties, such as gun mount locations and top speed

• In-game power-ups with weapons, defenses and temporary powers (like Rapid Fire)

• Power-down orbs with temporary inconveniences (like Weapon Freeze)

Additional Configuration Options

• Set number of lives, and number of times that special abilities can be used

• Play in a window or in Full Screen, and specify how much of the display to use in Full Screen

• Set graphics quality to one of three levels