I'm not really a gamer, but I thought I would give Steam a try and see if there were any games I would enjoy. I found a free game called Sigils of Elohim.
Sigils of Elohim is a free mini-game prelude to Croteam's upcoming first-person puzzler The Talos Principle that challenges players to solve dozens of challenging sigil puzzles under the watchful eye of Elohim.
Sigils Of Elohim is a puzzle game where to use arrangements of squares to completely cover a larger shape, generally a square or rectangle. The further you go through the levels, the more pieces are used and the larger the end result is. The screenshot below shows the first puzzle in the series.
Game control is easy. When you get the game installed in Steam, click on the first level (shown above) and the board will load. Click on a puzzle piece to pick it up and right-click to rotate it (90 degrees on each click). Place it in the position you want and click again and the piece will be placed. Repeat with all pieces until the black & white board is covered. If you decide you need to move a piece you already placed, just click on it again to pick it up and move it.
This screenshot is the most recent board I have solved. As I mentioned, the boards get bigger and the number of pieces increases.
Sigils of Elohim has 32 levels. At the end of each set of 8, you will receive codes to use in the new game The Talos Principle, to which this game is a precursor. From the Steam site:
The Talos Principle is a philosophical first-person puzzle game from Croteam (Serious Sam), written by Tom Jubert (FTL, The Swapper) and Jonas Kyratzes (Infinite Ocean). Solve complex puzzles woven into a metaphysical parable about intelligence and meaning in a doomed world.
From what I can gather from the trailer, you solve the same sort of puzzle to unlock doors and levels. It hasn't been released yet, but the release date now says December 11, 2014. Depending on the cost, I hope to play it when it comes out.
Wow! Steam is cool, with the right game. I'm not a gamer, but I do like puzzles.