Portal Prelude

Welcome to Aperture Laboratories! Long before GLaDOS ever ran the facility, step into the shoes of a test subject and test the Aperture Science Handheld Portal Device (ASHPD) for yourself! Test your way through 38 devious test chambers using Portals, in addition to many other intriguing gameplay elements such as plasma balls and electric fields.

Play Portal on a TI-83/TI-84 (!) Now, where did I leave my calculator?

Download Portal Prelude →

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Published by Bramus!

Bramus is a Freelance Web Developer from Belgium. From the moment he discovered view-source at the age of 14 (way back in 1997), he fell in love with the web and has been tinkering with it ever since (more …)

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