Hey, Mountain Lion users -- thanks for your patience while we worked around some bugs in the OSX 10.8 graphics drivers. With the newest changes, I've fixed the flickering borders that could sometimes show up in fullscreen mode. I also modified shadow rendering to bypass a graphics driver bug that was causing a really tragic crash.

Today's Deal: Save 66% off Cogs

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Updates to Cogs have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

By popular demand, we just patched in Steam Cloud support for Cogs! This means that your progress will be tied to your Steam account and transfer automatically between computers, even if you're switching between Mac and PC.

Cogs is now available on the Mac and is 50% off until July 28th at 10AM Pacific Time!

Cogs is a puzzle game where players build machines from sliding tiles. Players can choose from 50 levels and 3 gameplay modes. New puzzles are unlocked by building contraptions quickly and efficiently.

This weekend is the last chance to pre-purchase Portal 2. Get your copy now, save 10% and be ready to play the moment it is released.

Help release Portal 2 early: From now until release, play any or all of games in The Potato Sack to expedite the launch of Portal 2. Your efforts will be tracked on the official GLaDOS@home page.

Each game in The Potato Sack has received a massive Portal-themed update, making a collection of 13 hit indie games even better. So why not get a taste of Portal 2 now while you help launch it?

Updates to Cogs have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

• Fixed an install bug for non-English localizations.
  
• Stripped away the thin veneer of politeness by removing any requirements to speak magic words... But don't think I didn't consider "abracadabra."
  

Due to a change of management, the previously instituted magic word has been replaced by that to which you are more traditionally accustomed.

Cogs is a puzzle game where players build machines from sliding tiles. Players can choose from 50 levels and 3 gameplay modes. New puzzles are unlocked by building contraptions quickly and efficiently.

• Inventor Mode: Starting with simple puzzles, players are introduced to the widgets that are used to build machines — gears, pipes, balloons, chimes, hammers, wheels, props, and more.
• Time Challenge Mode: If you finish a puzzle in Inventor Mode, it will be unlocked here. This time, it will take fewer moves to reach a solution, but you only have 30 seconds to find it.
• Move Challenge Mode: Take your time and plan ahead. Every click counts when you only get ten moves to find a solution.