Alien on the Radar

Alien on the Radar is an arena game of cat and mouse between marines and aliens. Marines search for the alien and destroy its eggs before the timer runs out; the alien creates breeders that send minions against them. The game supports single-player and multiplayer, with AI bots, chat and a vote-to-kick option.

Playing as a marine

The closer a marine gets to an alien, the more precisely they can detect its position. Detection improves over time and reveals only the closest alien. If a marine stays still for a while, they can discover alien spawns. Marines use item makers to get machine-gun ammunition or speed up the timer, and cannot change their selection until the item maker is broken. When the timer runs out, the marines win.

Playing as an alien

The alien lays eggs and creates breeders, which produce minions to attack the marines. Small eggs are undetectable; large eggs become one of three types of spawn:

• Minion: attacks marines.
• Artillery: shoots item makers, or marines when no item maker is in range. Its bullets become visible to marines when they hang over a target.
• Breeder: creates minions that grow stronger the longer the breeder lives.

Spawns remain invisible until a marine stops nearby. The alien knows what the marines can see, and a red icon marks when a marine sees the alien. Bullets can hurt the alien even when it is not visible. Midway through a match, the alien grows and gains regenerating yellow health. Breaking an item maker gives the alien extra time.

Character deaths

When a character dies, they remain in the game with blacked-out graphics and a skull icon, but cannot shoot or attack. Hurt marines can still detect spawns at a shorter range, while hurt aliens can still leave tracks.