Quote from Setin on April 26, 2014, 9:45 am

Portals Through Time is a single-player series of puzzles built for Portal 2 and created in the Hammer engine over the course of 12 weeks. Players embody the main character, Chell, as she solves puzzles in test chambers created by the antagonist, GLaDOS. This series of chambers features the new mechanic of relative time travel. Players can go though a time machine entrance and exit out in another time and area of the chambers. The player starts in the present time period, where the chambers have fallen into decay and are overgrown with foliage. They must solve the test chamber by using mechanics still functioning in the past and bring them into the present.

File Name: PTT_Intro.zip
File Size: 8 MiB
Click here to download Portals Through Time (Part 1) - Intro