Wake Up Call is a short interactive piece that takes place inside a comatose man's mind. As you are trying to wake up, you can see your mind trying to reconstruct its basic capabilities like spatial reasoning, logic, memory, words or decision making. Your memories will also start to come back to you and maybe, you'll prove you're worthy of earning your consciousness back.
To run the game on Mac/Linux, you'll have to download the LÖVE runtime download (link below). You can then open the WakeUpCall.love to start the game.
Download the LÖVE client here: Love2d.org
When you download and install LÖVE, download the .love file here from IndieDB and simply open it, which will start up the game.