Free2Play

[iNgeon]

http://www.pcgamer.com/the-best-free-pc-games

no microtransaction-supported free-to-play games and no shareware.
Some old crap to amuse the sideline interests

[iNgeon]

This looks interesting http://store.steampowered.com/app/299360/

[iNgeon]

https://www.unrealtournament.com/#intro