For me the biggest time eater games have been Rimworld, Kerbal space program and Stellaris.
Could never get into "factory" games
Diablo 3, The Division 1/2, CSGO, and I 'religiously' replay my adventure and cRPG games. I have a ritual with the Ultima series as much as I have with Avadon and Avernum. I also probably have the most hours on earth with LBA 1/2. Fallout 1/2, the Forgotten Realm and Planescape series albeit I haven't revisited these in some time, other series would include PoE and Divinity (the originals and the original sin). I support indie adventure games and cRPGs big time. I honestly don't want to know how many total gaming hours I have.
I am also a NPC in Encased, real name and everything, 'n regte ****
I have a checklist, Beyond Good and Evil and Anachronox is on this year's list, and next year it is the Final Fantasy series. I replay games a lot, and only those with good stories, and when not it should be humorous and I do like my dark humour. Investigative thrillers are also awesome, like the Tex Murphy series, Sherlock Holmes series (incl. the originals) and the good old Laura Bow amongst others.
The only strategy game in which I have poured hours in are SINS, and I even played it competitively at some point. They still have their ladders. Talking about strategy, not too many people liked these two, but Dune and Reunion are also two games which I replay, as well as Star Control 2/3, and the new dud, but this series is my sweetheart and not to be discussed here openly.
I checked now, between January 2017 and now I have played a combined 7876 hours (incl. idle time) in Steam and GOG (this excludes my Anthem, Diablo 3, The Division 1/2 hours and other non Steam/GOG titles). Many people spend a lot more time than I do in gaming.