Halloween appears to have come early this year as Outlast Deluxe Edition is currently free on Humble Bundle. Not massively into FPSH games myself, but from the reviews it appears to be one of the more effective ones.
Watch_Dogs is free via Uplay/Ubisoft til' November 13th. https://hexus.net/gaming/news/pc/111887-watch-dogs-free-pc-gamers-13th-nov/ Free to keep.
Free for a limited time on the Humble Bundle store: https://www.humblebundle.com/store/...d_nightmareedition_freegame&hmb_medium=banner
PC version of Brutal Legend free for a limited time from the Humble store: https://www.humblebundle.com/store/...utm_campaign=Brutal_Legend_Free_Game_Announce
Plants Vs Zombies -- GOTY edition is free on Origin/EA. www.origin.com/usa/en-us/store/free-games/on-the-house
Microsoft is having their Black Friday sale. Deus Ex: Mankind Divided digital deluxe edition for the Xbox One is on sale for $13.50.
GOG has System Shock Enhanced Edition and System Shock 2 for the princely sum of $2.98 for both https://www.gog.com/game/system_shock_2 System Shock 2 is one of my all time favorite games. If you've never played it, you should.
Some deals at flash.newegg.com. Titanfall 2 for $6.99 (plus tax if applicable), free shipping, for PS4 and XB1 with the code NEFPSCN8. Ends Wednesday. Inside/Limbo for $9.99 with the code NEFPSCP50. Ends Tuesday.
Curse of Monkey Island is finally available digitally on GOG and Steam! On sale (along with MI 1 & 2) through Monday.
In case any one missed the news, if you're an Amazon prime member their twitch prime service is now giving away collections of games monthly. Currently Super Hot and Oxenfree are on there among others.
Amazon currently have 6 months Xbox Game Pass for £23.99 and Xbox are offering a month for a quid. 7 months for £25 is good going.
I am loving GOG now more then steam. Lots of amazing old games I have never heard of. I've never played Beneath A Steel Sky so enjoying that now and got it for free with a few other oddities.