Nioh

Hard, but very rewarding. Im a grandpa and find the learning curve quite steep, but like that fact. I got it on sale this Xmas, and am coming to the game late, so I use the web to get tips on game play to help me thru it.
If you have time to immerse yourself in a game, try this one. It is worth it.

You play as Weeaboo Geralt and travel to Japan to rescue your waifu. I'm not even joking. That's the plot. 10/10

Many will compare this to Dark Souls, because it has some similar mechanics (stamina, respawning enemies after death/rest, collecting lost "currency" from your death spot).
However, Nioh has so much more to offer:
- the combat is very good; you have a few types of weapons that play very differently and you can buy skills for each type; you can also respec your character if you later decide to go another playstyle
- stances; you have 3 stances for combat (low - low damage, fast swings, good dodging; medium - medium damage and speed, but better blocking; high - slow, but high damage); some stances work better for some enemies; you can combine these stances in many ways and you can even get temporary bonuses from switching stances; I played most of NG in medium stance, but the NG+ cycles kind of forced me to get more technical with my combat
- bosses are quite varied in aspect, gameplay, gimmicks and on how they feel overall
- loot; this might throw some people off, but I didn't mind the loot aspect; you get a ton of weapons/armor/items that you can sell for money, donate for Amrita (aka souls) or Glory (MP currency), or disassemble for materials;
* you can also forge your own gear, reforge the stats, or level up the gear using other, better gear (Soul Match); one thing I didn't like about Soul Matching is that it got ridiculously expensive the more you did it on the same item, but thankfully, once you get to NG+++, there is a way to reset the base item
- NG+ (and beyond) adds new and stronger enemies around the levels, so, for the most part, you still have to pay attention; you can switch between NG cycles whenever you want
- different game modes; you can play most missions in Coop with another player, with the caveat that the guest must have completed that mission beforehand, in his own game; I haven't tried Coop, because when I got around to playing Nioh, there was pretty much nobody else playing, but I'm glad that I did everything by myself;
* there is also the Abyss, where you fight bosses that have certain buffs, while you have debuffs (but you can disable the debuffs if you complete some side objectives);
* there is also Multiplayer, but I haven't tried it
There are some not so good parts, of course:
- the UI feels a bit clunky; you gain a ton of items, and the UI displays them as a vertical list, so you have to scroll a lot through the menu;
- speaking of menus, you spend about 40% of the game in menus; there's a lot of gear managing that needs to be done between missions
- sub-missions are very repetitive; while the objectives will vary, you will play the same levels over and over, with minor variations
- story isn't very special, though the setting is great (warring states Japan); there are some nice characters, though most feel under-developed
It took me a little over 300 hours to get all achievements, but I kind of ignored the Abyss (which has one of the Achievements) for most of my playthrough, so I guess it's not very indicative of how long it actually takes.
Anyway, overall, I love this game (I've played it more that all 3 Dark Souls games combined :P) and it's a must buy if you like this souls-like genre.

Waiting for Nioh 2 on PC is killing me.

So this is a game where you'll like it or hate it. If you've been looking at it, you're probably thinking "Oh, samurai Dark Souls" which is pretty accurate, except it's also not... Long post ahead for those that are seriously interested in the differences between the games.
See, the game has the same general idea as Dark Souls. Go through an area (in this case, a level) kill enemies, collect souls (amrita) to level up, learn attack patterns, face a boss at the end. That's kind of where the similarities end though.
Unlike Dark Souls, the game is level based not open world, but it feels kind of open world. Every level is a unique area you've never been to before. Every main mission has a boss that you haven't fought before. This is a looter game, meaning enemies drop all the loot you will ever need. Your character gets to choose a "Guardian Spirit" that allows you to have certain benefits (#Isonade gang). Some spirits allow you to detect enemies and hidden things on the mini map, others allow you to get more stamina or health back, and others boost chances of items dropping or crits hitting. All guardian spirits have an ability called "Living Weapon" that makes you immune, do elemental damage (which is sort of important in this game) and have infinite stamina. Living weapon is only activated when your spirit is ready (you can tell by the icon next to your health), depletes over time, and while in it if you take damage, your gauge depletes much quicker.
So lets talk elements. In Dark Souls, when you had the option of picking an element to infuse or buff your weapon, you first question was always "how will this scale with my stats?" In Nioh, that's completely different. Elements are applied on top of your weapon. I'm not sure if stats make certain elements scale better, but I don't think they do. This means if you find a weapon that has elemental damage on it by default, you're not really sacrificing anything. Elements are useful against certain enemies. The demon things (Yokai) have variants that die instantly or take extra damage from certain elements and are resistant to others. It is beneficial to try to have some elemental stuff with you.
Finally, the way the game differentiates itself. In this game, there are spears, axes, swords, tonfas, chain-scythes (Kusarigamas), dual swords, bare handed, hammers, and Odachis (a big 2-handed katana) to choose from for weapons. Every weapon has a high, medium, and low stance that alters the way it attacks. For example, I chose to use the Kusarigama. In high stance, the weight is twirled around in a large area of effect and thrown really far, but it's slower. In low stance, the weight is twirled in front of you, really good for inflicting low damage, fast, staggering attacks. On top of all of that, there is also the ability to invest into Ninjutsu (shurikens, bombs, poison stuff) or Onmyo (shooting magic elements, buffing weapons, summoning defenses, etc...). That is a whole other ball game.
But basically, this game gives you dozens of ways to customize your character. I'd say more so than Dark Souls does. But I'm not going to say it's better than Dark Souls. It's a different type of experience. Playing this won't scratch that Dark Souls itch you may have. But I think you'll have a lot of fun anyway.

Don't try it if you are trying to quit smoking.

its Dark Souls difficulty, Bloodbourne speed combat with Diablo style loot and plenty of depth.