
You choose how to play, and the world of Environ adapts around you.

Build a settlement up to 10 bonus structures.

Build a settlement up to 20 bonus structures.

Build a settlement up to 30 bonus structures.

Be present at the successful completion of a mission.

Be present at the successful completion of 10 missions.

Be present at the successful completion of 30 missions.

Be present at the successful completion of 50 missions.

Be present at the successful completion of 100 missions.
Minimum OS *: Windows XP SP2 or later Processor: 1.6Ghz CPU (more is recommended for multiplayer servers) Memory: 2 GB RAM Hard Disk Space: 2 GB RAM Video Card: 800x600 or greater desktop screen resolution (1024x768 recommended) Graphics card must support 1024x1024 textures (most 32MB and up graphics cards do).
Minimum OS: Mac OSX Intel CPU and "Snow Leopard" 10.6 or later Processor: 1.6Ghz CPU (more is recommended for multiplayer servers) Memory: 2 GB RAM Hard Disk Space: 2 GB RAM Video Card: 800x600 or greater desktop screen resolution (1024x768 recommended) Graphics card must support 1024x1024 textures (most 32MB and up graphics cards do).
Minimum OS: Ubuntu 10.10 or later, although other unsupported distros may very well work Processor: 1.6Ghz CPU (more is recommended for multiplayer servers) Memory: 2 GB RAM Hard Disk Space: 2 GB RAM Video Card: 800x600 or greater desktop screen resolution (1024x768 recommended) Graphics card must support 1024x1024 textures (most 32MB and up graphics cards do).