I thought it might be a good idea to have a thread dedicated to which games are free or available at a discount on the PS Store. If you see a cool free game or a game that's on sale on the PS Store, pop it in here so we can all check it out.
To start off, there's an Easter sale going on atm. Quite a few games are available at a discount including Unravel, Rocket League and Metal Gear Solid V: The Phantom Pain. So check that out if any of these titles interest you.