Dota 2 Update - July 18th, 2013
July 18, 2013 - Valve

PLATFORM
Dota 2 is now available for Mac OS X and Linux.

Dota 2 Mac OS X Minimum System Requirements:
Mac OS X Lion 10.7
4GB RAM
8GB Hard drive space
nVidia 320M or higher, or Radeon 7000 or higher, or Intel HD 3000 or higher

Dota 2 Linux Minimum System Requirements:
Ubuntu 12.04
Dual core from Intel or AMD at 2.8 GHz
4GB RAM
8GB Hard Drive Space,
nVidia GeForce 8600/9600GT, ATI/AMD Radeaon HD2600/3600 (Graphic Drivers: nVidia 310, AMD 12.11), OpenGL 2.1
OpenAL Compatible Sound Card