I love a list so inspired by Henners' post in the film thread (and the masses of these that are probably knocking about online), lets do a games one.

I've partly googled lists for inspiration / to jog my memory, partly tried to just remember (lol) and partly tried to use those Wikipedia "[year] in video gaming" articles but I have almost certainly forgotten something, and there are definitely things I've not played yet that I fancy would have a chance of cracking this. I tried to put them in order and Witcher 3 is definitely top but after that I struggled to decide so basically consider it as Witcher 3 and then the other 9 in no particular order. Shadow of Mordor nearly got in because I love the Nemesis system that much and which of the Arkham games is my favourite varies by mood. I may come back to this before the month is out.

The Witcher 3
Divinity: Original Sin 2
Mass Effect 2
Dishonored 2
Return of the Obra Dinn
Tacoma
Assassins Creed: Black Flag
Disco Elysium
XCOM 2
Batman: Arkham Asylum

Games which miss out despite probably having more hours put into them than most of the above: Skyrim, Crusader Kings 2, Football Manager.