Download of Earthsim 2.0 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program lies within Desktop Tools, more precisely Screensavers.
This PC software was developed to work on Windows XP, Windows Vista, Windows 7 or Windows 8 and can function on 32-bit systems. The following versions: 2.0, 1.7 and 1.6 are the most frequently downloaded ones by the program users. Commonly, this program's installer has the following filenames: esinst.exe, browser.exe, earthsim.exe and espack0.0.exe etc. We recommend checking the downloaded files with any free antivirus. This tool was originally designed by Earthsim Ltd.
From the developer:
The Earthsim Online Screensaver account gives full access to everything that can be explored in the Earthsim universe. The only things you wont have access to are documentaries and information layers on planets, moons and other objects. The EOS account also gives you access to hundreds of 'attract shots' (camera flybys of objects and planets) in Earthsim which are constantly being added to and improved.
You may want to check out more software, such as Xequte Panorama Screen Saver, Comic-Aquarium 3D or Text-Reader clock, which might be similar to Earthsim.