Outnumbered 1.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. Outnumbered.dmg is the frequent file name to indicate this program's installer.
The following version: 1.0 is the most frequently downloaded one by the program users. The program is included in Games. This free software for Mac OS X is an intellectual property of OneSadCookie. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Outnumbered is a 3D flying shooter game which pits you against a relentless horde of insects and their evil overlord.
The default controls are the arrow keys, with space to shoot. Use the Options menu at the title screen to change the controls. If you'd like to invert the vertical axis, you can do so by swapping the appropriate keys.
You may want to check out more software for Mac, such as GSB or Gratuitous Space Battles, which might be related to Outnumbered.