As the name sort of suggests, this is an alien invasion pop-up street game in which, with cues from 1950s sci-fi movies, you are forced to fight back by torchlight when invaders from outer space arrive in Shoreditch.
There is also a Mad Scientist-style afterparty to get your teeth into.
November 2nd, 5pm-7.45pm
Blueberry Bar, 2-4 Paul Street, EC2A 4JH
Tube | Liverpool Street
thinkingbob.co.uk/halloween