If you've played any of "The Room" series, then consider this to be "The House" - a similarly styled game but on a much larger scale. Very difficult but brilliant fun!

Great, challenging puzzle game which manages to correct the flaws of its predecessor "LEAVES - The Journey" by clearly laying out the rules for its puzzles within the game world.

Nice, challenging puzzle game only let down by a couple of questionable puzzles where the in-game instructions don't seem to point at the correct answer.

Casual point and click adventure with a couple of really nice puzzle sections mixed in. Perhaps worth waiting for a discount as it's quite short at 2-3 hours long but was an enjoyable experience.

Short but delightfully twisted point and click adventure game which puts you through a series of boss fights where you have to use the right items at the right time and in the right order to win.

Takes everything about the first game and improves upon it. Better graphics, better (and many more and varied) puzzles, better story. Portal 2 is the best physics based puzzle game on Steam.

One of the first games on the Steam platform, and still regarded as one of the best. Ingenious puzzles based around linking two portals to unlock a door, make this a must play for puzzle game fans.

Large scale first person physics based puzzle game with hundreds of puzzles using a variety of mechanics that will really put your intelligence to the test. A masterclass in making a puzzle game.

Extremely inventive and enjoyable Sokoban style puzzle game with a great sense of humour and tons of content. Over 150 puzzles and around 15-20 hours gameplay make this well worth playing.