Half-Life (stylized HλLF-LIFE only first game of series or just λ) is a series of first-person shooter video games that share a single science fiction alternate history. The games in the series all utilize either the GoldSrc or Source engines and are linear, narrative, single-player titles.

Portal is a series of first-person puzzle-platform video games developed by Valve Corporation. Set in the Half-Life universe, the two games in the series, Portal (2007) and Portal 2 (2011), center on a woman test subject, Chell, forced to undergo a series of tests within (now abandoned) the Aperture Science Enrichment Center by a malicious artificial intelligence computer, GLaDOS, that controls the facility. Each test involves using the "Aperture Science Handheld Portal Device" - the "portal gun" - that creates a human-sized wormhole-like connection between nearly any two flat surfaces.

Setting

Both series take places in underground labs (both are also rival to each others), Black Mesa and forementioned Aperture Science. [update needed]

Characters

Gordon Freeman - main hero of most all of half life series, former scientist from Black mesa and gradated from Massachusetts Institute of Technology with PhD in Theoretical Physics, now unemployee and treated later of series as official savior-like revolutionary against combine.

Chell - main heroine from portal series, test subject from (abandoned) aperture science. Some part semi-reveal in sequel portal 2 that implies that was forced being test subject after massacre with neurotoxin years before events of game. [update needed]

Genre

Half-life is one of several 1990s games that being Cyberpunk genre as well several Biopunk elements into video gaming gameplay and enivornment, Its offical sequel Half-life 2 take place 20 to 30 years in future were Earth take control by Combine (transhumanist soldiers) and thier Synth (plays word Synthic biology). Portal series is take place in Postcyberpunk-style ruins of underground part of corporation destory by AI named GLaDOS.

Transhumanist themes

Both series share simliar ideas of types of Transhumanism. [update needed]