Hey gamers! 
A game called 3 out of 10, EP 1: Welcome To Shovelworks, is free for a short time, until the 13th August.
Store Description:
Join the ongoing adventures of developers at the world’s worst video game studio as they endure antics both absurd and topical. This week Midge joins Shovelworks Studios as a new animator, but not all is as it seems at the studio.
hello. this doesn’t appear to actually expire. all the episodes appear to be always free.
At the time of posting, this was a paid game that was free for one week.
Since then, the developer has changed their direction and is giving the whole season 1 for free. They might be going down the same route as Life is Strange, where season 1 is free but seasons 2+ are paid. No official confirmation on that though.