Play with friends online to defend the planet! Longest time to first impact or longest time to 100% damage. You destroy asteroids by flying into them before they hit the planet!

• First Tier: The longer you can prevent the first hit on the planet.
• Second Tier: The longer you can prevent the planet from being annihilated!
• Third Tier: How many asteroids did you and your friends collectively destroy?

Just make sure you all start on the same epoch! The first person to create the epoch sets the number of approaching asteroids in each wave.

Mouse locks when you click on the window, press ESCAPE to unlock the mouse.

• Use W,A,S,D,Q,E,SPACE & LEFT SHIFT to move around.
• L-CTRL / Right Click to Brake.
• L-ALT / Mouse 3/4 Click to Instant Brake.
• R = Toggle auto-tilt/roll around planet.
• Q+E to stop rolling.
• F = FPS to console.

Hosting your own server (the default server may not be online)

Download the deb from https://astroimpact.github.io or compile from source https://github.com/mrbid/AstroImpact

Make sure you have Network Time Protocol (NTP) enabled, the game relies on syncing epoches between machines for many aspects of networking.

Make sure you have UDP port 8086 forwarded from your router.