Play SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028) Online
SDI: Strategic Defense Initiative is based around classic-style shoot 'em up action. It puts you in control of a satellite which must ensure that the wave of bombs aimed for the United States do not hit. Direction of motion and direction of fire are controlled independently - on the 16-bit versions you rotate the mouse left and right to direct the targeting, move it up and down to increase the range, and use the joystick to move the satellite and thus avoid any contact.
Each level is split into defensive and offensive stages. On defensive levels you must stop each unit as it heads towards the earth, a lá Missile Command. Offensive stages follow the old 'shoot it before it becomes a danger' philosophy, being free-flying shoot 'em up sections among a network of destructible (but worth saving) platforms.
Available Versions
SDI - Strategic Defense Initiative (bootleg, set 1) (1986)(Arcade)
SDI - Strategic Defense Initiative (bootleg, set 2) (1986)(Arcade)
SDI - Strategic Defense Initiative (bootleg, set 3) (1986)(Arcade)
SDI - Strategic Defense Initiative (bootleg, set 4) (1986)(Arcade)
SDI - Strategic Defense Initiative (bootleg, set 5) (1986)(Arcade)
SDI - Strategic Defense Initiative (bootleg) (1986)(Arcade)
SDI - Strategic Defense Initiative (Japan, old, System 16A, FD1089B 317-0027) (1986)(Arcade)
SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028) (1986)(Arcade)
SDI - Strategic Defense Initiative (Japan, newer, System 16A, FD1089B 317-0027) (1986)(Arcade)
About SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028)
SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028) was first released in 1986 by SEGA Enterprises Ltd. for the Arcade system. Developed by SEGA Enterprises Ltd., this game quickly became a fan favorite for its Action and Unknown elements.
Game Features
- Authentic Arcade experience directly in your browser
- Save and load your game progress at any time
- Full screen gameplay option for immersive experience
- Customizable keyboard controls
- Action and Unknown gameplay that defined a generation
SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028) Series
How to Play SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028) in Your Browser
1. Click Play
Simply click the "Play Now" button at the top of this page to start the game immediately.
2. Use Controls
Use your keyboard to control the game. Check the keyboard configuration section below for details.
3. Save Progress
Use the save feature to preserve your progress at any point in the game.
Pro Tip
For the best experience playing SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028), use a desktop or laptop computer with a keyboard. Full-screen mode provides the most immersive gameplay.
Emulator Keyboard Configuration
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Last updated: 2025-03-14T08:59:04.324Z
This page is part of our effort to preserve classic video game history. SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028) © 1986 SEGA Enterprises Ltd.. This online emulation is provided for historical preservation and educational purposes only.
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