Download of Tunnel Run 1.0.1 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application is an intellectual property of EnsenaSoft. The program lies within Games, more precisely Arcade. 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:
Tunnel Run challenges you to race down an endless spinning tunnel collecting balls without dropping through the gaps. The longer you survive and the better you play, the faster the tunnel moves. Tunnel Run offers a breathtaking gameplay experience with its fast-paced action and requires quick reflexes and strategy.
You may want to check out more Mac applications, such as Tunnel, VMware Tunnel or MonoBrick Tunnel, which might be related to Tunnel Run.