Subnautica of course was a banger, but recently I’ve been insanely addicted to Icarus. The mission oriented gameplay makes the survival gameplay less tedious even though I’m doing similar stuff. You drop down, figure out what you need to complete the mission, set up and get the mission done, then get out. You have meta progression to make missions quicker to work through and you have a levelling system to further impact your strength. Just a super satisfying loop to me.
When the big brother dies in Brothers: A Tale of Two Sons. The game is short, but does a great job of getting you emotionally attached to these brothers. Even through the controls, you control both brothers at once with each getting half of your controller. When he dies, it also essentially kills half of your controller. I found myself trying to move the brothers together as I have for the rest of the game.
Final Fantasy XIV, Terraria, GTFO, Killing Floor 2, Guilty Gear Strive/Xrd Rev 2, 7 Days to Die, Minecraft, and recently some of us have been playing MegaMan Battle Network VS matches. What is popular changes quite often
There’s the obvious Monster Hunter, of course. Other than that, Shadow of the Colossus, maybe Dragon Age for the tactical combat. If you just want to fight absurdly large bosses, God of War, Asura’s Wrath, and Jotun are great for that. Maybe Horizon: Zero Dawn, it’s very different but it does have you fight enemies larger than yourself and force you to consider your approach. The Witcher 2 & 3 are in a similar vein to Horizon (just ignore 1, this isn’t a suggestion).
I only played a bit of DD, so take these with a pebble of salt.
Final Fantasy XIV. No, you have a problem!
Just play until you don’t feel like it anymore. If you need a milestone, clear a match/run/whatever on the highest difficulty. Or maybe every variety, so in Civ, a victory of each type. Or if you feel like going hard, find a rating you want to get and get there, like Celestial in Strive. I would say just play until you feel satisfied though. Don’t worry about what others think of your completion metric. None will satisfy everyone.