The Witness is now available on Steam for the Mac. We sneakily put it up a week ago, but here's the official announcement.

To celebrate the Mac release, the game is on sale for 50% off this week (for both Windows and Mac)!

We have now updated The Witness with support for NVIDIA's Ansel imaging tool.

We did this because Ansel adds a lot of interesting ways to take images from the game; because The Witness is highly visual, this should be some good fun.

Capabilities include:

* Super-resolution screenshots (waaaay higher than your monitor resolution)
* 360-degree panoramic screenshots
* Image tweaks for brightness, contrast, color control
* Postprocessing filters

To use this stuff, make sure The Witness is updated, that you are running a supported NVIDIA GPU (GeForce GTX 600-series or later; for a list of compatible GPUs, see http://www.geforce.com/hardware/technology/ansel/supported-gpus ), and that you have recent drivers for your NVIDIA GPU, then press alt-F2 during gameplay. The Ansel control panel should appear.

When in Ansel mode, you get a bit of control to fly a free-floating camera around. So as not to break the game, if you are in the entry castle at the very beginning, you can't fly very high; but once you turn off the force field and exit the courtyard, you can go much higher.

Here's the announcement on NVIDIA's site: http://www.geforce.com/whats-new/articles/nvidia-ansel-for-the-witness-available-now

Changes:

* Switched default vsync mode to 0 on Nvidia and AMD now that their drivers seem to be fixed; this should eliminate microstutter for many people who had it.

* Fixed crackling audio that happened on some AMD processors.

* Added translations into many languages for the menu options added in the previous update.

* Increased frequency of automatic backup save games.

* Minor gameplay tweaks to several puzzles.

* Bugfix: Prevent the player from being able to fall off the boat in a particular location.

* Bugfix: Fix bug where boat path could become corrupt in save games.

* Bugfix: Prevent the player from outrunning the streaming.

* Bugfix: Several minor audio fixes.
* Bugfix: Several collision fixes.
* Bugfix: Many minor art fixes.

Fixes some small weirdnesses in the launcher, and makes sure the game launches with consistent graphical options.

This includes some new launcher options (more control over graphics settings, for example) and tweaks for various GPUs, in addition to a fix for the savegame-deletion problem.

The patch is 1GB, as are any patches that change the state of objects in the world; sorry about the size!