SDI - Strategic Defense Initiative

3805 Plays Added on Apr 23, 2026

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Description :

Take control of a cool satellite and prepare to be launched from the back of an awesome spaceship to enter Earth's orbit and defend the planet at all costs by blasting the hell out of all the evil alien forces trying to destroy the planet! In the amazing SDI - Strategic Defense Initiative you must find your inner space warrior and wage a one man war against all manner of crazy aliens to save the planet and ultimately your race from total annihilation.

If you are looking to take a shot at more epic gaming from this intensely defensive genre then you might also want to get involved with other greats, such as Duke Nukem - Time to Kill, WarGames - Defcon 1 and the badass Mobile Armor.

Tags :

SHOOTING DEFENSE

Additional Information

SDI - Strategic Defense Initiative is an online retro game which you can play for free here at playretrogames.com It has the tags: shooting, defense, and was added on Jan 27, 2015. It has been played 3805 times and is available for the following systems: mame / mame / Mame - Original Arcade You can also play SDI - Strategic Defense Initiative unblocked.