Everyone - Before you just start reading the list, please note the following from the start of the article:
All of the games on this list are free in their entirety. That means no microtransaction-supported free-toplay games and no shareware. We’ve also excluded ‘pay what you want’ games on the basis that developers who give you the ability to chip-in would probably like you to consider doing that. That said, there are always exceptions and you’ll find games on this list that sit in a grey area – normally where there’s a substantial free version with the option of also buying an upgraded paid edition. In these cases, we’ve gone with our hearts. Which is to say that we argued about it for hours.
With that said, the list looks decent.
I haven't heard of probably half of those games though.