Kim Swift (born 1983) is an American video game designer best known for her work at Valve with games such as Portal and Left 4 Dead. A graduate of DigiPen, Kim Swift and a group of her fellow graduates developed Narbacular Drop, a portal-based game that was later presented to Valve, which led to Gabe Newell personally offering to hire them so that they could create the critically acclaimed game Portal. Kim Swift was both the leader of the Portal team as well as a level designer.