Killing Cloud is a sci-fi action-strategy game set in a cyberpunk San Francisco in the year 1997. It was developed by Vektor Grafix initially for Atari ST, then later ported to Amiga and MS-DOS.
In this game, conceived by Alastair Swinnerton and Ian Martin, you are a policeman, and you have to perform several missions to arrest terrorists. Since the city is covered by poison gas (the killing cloud), you have limited time to complete the missions. You won't survive more than 20 minutes outside in the city. Your hoverbike will allow flying at a certain height from the ground, but you will also have to position the forces on the ground.
Killing Cloud was the perfect game for the people who liked 3D flight simulations but found them boring. It has both 3D flight sim, strategic, and action elements, plus a very atmospheric futuristic theme. Highly recommended.