Destroy waves of UFOs in a arcade style space shooter with an array of powerful weaponry.
We are not affiliated with IsThereAnyDeal.






Alien Decimation is a retro shooter with waves of UFOs to destroy with an array of powerful weapons. Visit planets and moons of the Solar System and beyond while taking down invading forces with machine guns, multi-burst weapons, cluster bombs, lasers and more. Face off against a multitude of bosses as well as plenty of minions. * 24 Stages Visit 8 locations to take down waves of UFOs and finish by taking down the end boss. * Multiple game modes Standard arcade mode. Sudden Death where you and most enemies die in one hit, Decimation mode where everything is faster and there are far more UFOs to blow up. Trial mode to survive as long as you can. Boss modes to play through just the boss fights. * Powerful weapons Collect ammo for 6 different weapons to fire. Charge up a special bar to have access to another 6 incredibly powerful weapons that can take out many enemies at once. * Caters for all difficulties Breeze through the game without too much challenge, or be up against an overwhelming challenge, or go for anything in between.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.






Alien Decimation is a retro shooter with waves of UFOs to destroy with an array of powerful weapons. Visit planets and moons of the Solar System and beyond while taking down invading forces with machine guns, multi-burst weapons, cluster bombs, lasers and more. Face off against a multitude of bosses as well as plenty of minions. * 24 Stages Visit 8 locations to take down waves of UFOs and finish by taking down the end boss. * Multiple game modes Standard arcade mode. Sudden Death where you and most enemies die in one hit, Decimation mode where everything is faster and there are far more UFOs to blow up. Trial mode to survive as long as you can. Boss modes to play through just the boss fights. * Powerful weapons Collect ammo for 6 different weapons to fire. Charge up a special bar to have access to another 6 incredibly powerful weapons that can take out many enemies at once. * Caters for all difficulties Breeze through the game without too much challenge, or be up against an overwhelming challenge, or go for anything in between.
Destroy waves of UFOs in a arcade style space shooter with an array of powerful weaponry.
We are not affiliated with IsThereAnyDeal.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.