Games you can always come back to

[Cyanide_Nova]

Mine honestly vary depending on my mood and how work went but typically

Tom Clancy's The Division
Skyrim
FFXIV
FF15
Fallout New Vegas
ANd both of the Metro Redux's

[gbullock32]

Halo 1, 2, 3
Fallout 1, 2, 3, NV, 4
Gears of War 1, 2, 3
Elder Scrolls 3, 4, 5
Zavix Tower
Diablo 2
Call of Duty 2, 4
Need for Speed: Underground 2
Command & Conquer any of them
Empire Earth Gold
Stronghold Crusader
Bioshock
Tony Hawk Pro Skater 1, 2, 3

Definitely forgetting a few no doubt.

[MrFon]

The Witcher 3, Final Fantasy 7, 8, 9 and 10. Kingdom Hearts series and Uncharted series.

[Lehran]

There are a few games I go back and play once during the year

Castlevania aria of sorrow
Paper Mario thousand year door
Fire emblem Radiant series
Borderlands 2
Resident evil 4
Super Mario world
Bayonetta

I always feel like I'm wasting a lot of time I could spend on the backlog though.

[TakahiroSama]

Doom (2016)
Sonic the Hedgehog 1,2,3, and Mania
Command and Conquer franchise
Borderlands franchise
Assassin's Creed 4 Black Flag

Those a are a few of the main reasons I'll never go through all of my backlog probably ^^

[UncleSwiggle]

Halo 1-3
Warcraft 3
Dragonball FighterZ
Mortal Kombat X
Overwatch
Call of Duty Black Ops (Specifically Zombies, Only with people over)
YGO Pro
I would have said World of Warcraft (been a player for 15 years) but with the way its been going i find myself playing it less and less, barely at all tbh.