Half-Life

half life is a game series made by valve that takes place in the same universe as portal. The player is a sientist named Georden Freemen who works at a sience reserch center named black mesa who are competiters with apature sience and they often steal there ideas. the object of the games is to stop invading aliens who are part of a group who wishes to take over the world: THE COMBINE Unlike portal recently a new installment of the series may come up soon.

CONECTIONS -glados mentions black mesa in here song still alive. -dito with cave jhonson -In half life they ofton talk about a apeture sience project called the boliales

go to the half life wiki for more info!