The Entropy Centre' is a first-person puzzle game with heavy 'Portal' vibes
Portal Chapter 3 (Puzzles 08 – 09) - Gamer Walkthroughs
Portal' is back (sort of) with a fun new puzzle game | Mashable
Testing, Testing: Portal 2 Puzzle Creator | Rock Paper Shotgun
Pacing in Puzzle Games on the Example of Portal 2
![Portal [PC] – Review | My Brain on Games](https://mybrainongames.files.wordpress.com/2015/07/portal-puzzles.jpg "Portal [PC] – Review | My Brain on Games")
Portal [PC] – Review | My Brain on Games
Portal Chapter 7 (Puzzle 15) - Gamer Walkthroughs
The Development Story of Portal - A Puzzle Game With A Rich Story - YouTube
Portal 2 Puzzle Maker #2 | Jack Goodall
Chamber 00 - First Puzzle image - Portal: Rebirth mod for Portal 2 - Mod DB
Portal 2 screenshots offer sneak peek at simplified puzzle creator - Neoseeker
Review: Portal 2 - Slant Magazine
Portal Chapter 2 (Puzzles 04 – 07) - Gamer Walkthroughs
Portal RTX Is a Ray-Traced Remix of the Puzzle Classic | Q 104.1 FM WCKQ | Today's Top Hits
1: The physics puzzle game portal | Download Scientific Diagram
SD Toys Rick And Morty Portal Puzzle 1000 Pieces Multicolor| Kidinn
Portal/Chamber 00 — StrategyWiki, the video game walkthrough and strategy guide wiki
Math of the game Portal – The Reflective Educator
Steam Community :: Guide :: How to Create Good Logical Puzzles
Best games like Portal and Portal 2 for mind-bending puzzles | GamesRadar+
Portal 2: Short Laser-Based Puzzle ft. Sendificator : r/PortalMaps
Portal Chapter 1 (Puzzles 00 – 03) - Gamer Walkthroughs
Portal Chapter 5 (Puzzle 13) - Gamer Walkthroughs
Portal 2 Puzzle Maker: Observation Room - Valve Developer Community
![Portal 2 - Cool Laser Puzzle [HD] - YouTube](https://i.ytimg.com/vi/9XzQl7eY33s/maxresdefault.jpg "Portal 2 - Cool Laser Puzzle [HD] - YouTube")