Horizon: Zero Dawn
This is one where you play a savage hunter going after mechanical dinosaurs.
I'll start with what makes this game unique: the encounter mechanics. In H:ZD, you can't go toe-to-toe with a foe unless you're at least 10-15 levels above them, and often not even them. To deal with a given beast, you have scan them to learn their weaknesses (e.g., they have a canister that will explode if hit with fire), and come up with strategies for defeating them. The game does not force you into a particular strategy, it just provides you with a variety of tools, each with ammo of various elemental types (fire, shock, etc.): bows, tripwires, traps, and slings; there's even some machine-gun-like weapon that I never used. You typically sneak around, plant your obstacles, lure a mob to you, do some damage... then run away before it can attack you, wait until it's forgotten you're there, then head back to do more damage.
If you all you want to do is blast away at enemies, this is definitely not the game for you. If you like to play a game that rewards patience and strategy, it's a game to consider. For me, a player who has no twitch reflexes, it was a lot of fun.
This is an open-world game. After some initial tutorial quests, you can go pretty much anywhere you want, though the further you go from the starting areas the tougher the mobs get. There are the usual loads of side quests; I went on every one I found to out-level the main story content. There are also many types of collectables; my favorite was the Vantage, which gave you an overlay of the original high-tech landscape before the fall of civilization.
The graphics: This is a beautiful game on the PS4 (I don't think it's available on other platforms). The landscapes are lush, the details on the characters and the creatures are amazing. More than once I was befuddled by a shadow crossing the sky, then realize it wasn't one of the flying creatures, but the sun rising. The one drag on this realism are the cut-scenes, which occasionally demonstrate some graphics glitches.
The story: You play Aloy, who (after a bit of a tutorial) starts out as a 19-year-old outcast from the Nora tribe. As you proceed in your efforts to be accepted by the tribe, you gradually become aware that there's a destiny in store for Aloy, one that explains the mechanical creatures and the ancient remnants of a technological civilization that are all over the landscape. In the end, I liked the story; it did a good job of rationalizing the environment and tugged on my heartstrings as Aloy learned who she was and where she came from.
Diversity in gaming: Aloy is a 19-year-old woman, but none of her outfits looked anything other than practical gear. Several male characters (and at least one female character) attempt to flirt with her, but she has none of it: she's focused on the task at hand. There's an even blend of different human racial types represented. Aloy's one semi-romantic interest (it goes no farther than "I'd like to show you that cavern someday") is someone with a different skin color than hers. Like the recent Tomb Raider games, this game does well by the female lead (at least, according to this particular cis-gendered white male reviewer).
Final verdict: If you have a PS4, and you value patience in your game-play, this is a "must-have" game.