Hob

Hob is a pretty sweet and unique 3rd Person, Puzzley, Metroidvania-ish Adventure, with some lite combat. While there's a story, it's wordless and somewhat sparse, so the main draws for gameplay are exploration (with lots of backtracking) and environmental puzzle-solving. If you're patient, it's worth it, especially since it's often on sale for 50% off.
Big caveat before moving on:
just 1 month after Hob was released in 2017, the developer closed up shop. So:
(1) I don't know if any money is going to the devs, it might be going to the company that bought them and shut them down. That's a bummer, because the game is pretty good.
(2) Any bugs/issues documented in the forums are what they are. I personally encountered no game-breaking bugs: the whole game is playable. I did have quite a few display issues -- menus and the health UI not always displaying properly -- but I could quit and relaunch and that would often solve it (and I mostly blame my out-of-date PC/vidcard/drivers). But you might want to tool around the forum to determine if you can predict any issues on your setup.
With that out of the way...
The world-map of Hob is dense with hidden areas and cris-crossing paths, and a key feature of the gameplay arc is that new regions of the world-map become accessible as you return power to machinery or defeat sprawling purple goo that blocks paths. That's roughly your goal: get rid of the purple goo and repair the world. As you progress, new areas of the world-map are elevated out of the fog and pair up with other areas, becoming accessible. This was a unique gimmick and always fun to watch, and a lot of the game's complexity comes from the fact that the map is sort of warping and expanding as you progress. This got a little bewildering at times, but was mostly fun and interesting.
I completed the game for the first time at around 15h of gameplay, so it's a decent length.
In part, this is because puzzles and pathfinding are indeed clever/challenging.
In part, it's because you have no control over the camera, and often may not have your eye drawn to the correct spot when the game tries to auto-pan the camera around to show you where to go next -- be prepared for a bit of wandering and feeling a little lost at times.
In part, it's also because you can fall off the map or get killed, and then have to re-spawn from the nearest save point. Save points on the overworld map are pretty prevalent in the early and mid-game, but become sparse in the late game, which got a little irritating. Save spots are generally dense and forgiving inside of the few big puzzley "dungeons" you'll run through.And in part, it's because I was trying to find all the collectibles.
There are optional collectibles that you can use to upgrade gear/attacks, find a little more lore, and get a few Steam Achievements if you're into that. If you are into achievements, note that at least 2 playthroughs are basically necessary, and perhaps more -- there are roughly incompatible achievements for:
(a) getting all collectibles and upgrading everything,
(b) beating the game with no upgrades at all,
and
(c) speed-running the game in under 5h (which is quite possible, though still a decent challenge).
Overall, I had fun. If the big caveat didn't scare you off and you're willing to be patient, I recommend Hob.

The puzzles aren't challenging and I almost let it go because it felt like a kids game. But you find out that it's not really about the puzzles and not really about the combat. It's the exploration. One of the things I love about puzzle games is when it itches that part of the brain where you find those secret little areas. THAT'S what this games does best. You HAVE to go back and check out those areas you couldn't reach before. You HAVE find out what that little tunnel area leads to that you can see in the distance. If you have that itch, this game wills scratch it.
Another thing of note that really kept my attention was the visuals. Unfortunately, they really don't fully come out until a little ways into the game play. Again, I thought it was a bit juvenile but it takes a turn man. Really tho, the visuals surprise you and their use of isometric view really makes it stand out from other games.

HOB ... A HOB's Tale
Sup all ! This game is super nice and very underrated ! It plays kind of like Mario meets Zelda meets Fez ! The controls are real good and I also would highly recommend using a Controller to play this one ! The game has a very console feel to it a bit of old school meets new school so a controller works better but it can be played by keyboard and mouse .
The GFX are real nice and way easy on the eyes with lots of lush and colorful landscapes and vibrate colors . As for the game play its a mixed game with action combat and puzzle solving and exploring and collecting . You also open up areas of the map and find upgrades for HOB along the way with your exploring and puzzle solving . You can upgrade his/her Skills as you adventure on ! Truth there is no real hand holding in this game so you have to be on the lookout for things that stand out or paths to go down or you will be running around in circles lol
There are a few bugs like getting stuck on things or ladders or walls but they added a unstuck or respawn in the menu. I have had only one cash so far and there is off and on fps drops on some areas but its not enough to say the game is unplayable and can be hardly noticeable . Also if it crashes there are so many save points if you have to reset due to a crash you don't have to go out of your way to get back to were you died or the crash happened.
Just sucks Runic games was closed down.... I really would have like to seen a HOB 2 and maybe some fixes to this one to make it rock solid.... But all and all I give this one a 8/10 score ! A real must play if you like these types of games !

One of the best platformers i've played in years. The combat is also pretty dang good.
I only got 2 gripes:
1: the camera can sometimes clip through objects and depending on the area that can really screw with the combat areas.
2: the keyboard and mouse control schemes are a little wonkey, and you can't rebind the keys to match where you want them to be. CONTROLLERS ARE DEFINiTELY RECOMMENDED.

Runic were such great devs. Torchlight and Torchlight II are exemplary. Music by Matt Ullman (diablo II) for your games means I will always buy them at some point. This is a lovely looking and very soulful game, one where you get an achievement for petting an animal rather than killing and skinning it. The platforming can be a bit annoying, the camera can be awkward and their recommendation of using a controller is probably justified. I managed just fine with keyboard and mouse but I feel it isn't optimal. In the end I refunded but I always regretted that decision and wish-listed it again in case it came on sale - and here it has. It's unique in today's gaming climate of aggressive warmongering and everything being a competition and I could recommend it purely for that. The story is told purely through playing the game. There is a distinct and purposeful lack of hand holding. So if if you like to be on rails, move along. It's a peaceful zelda-esque experience, the like of which is sorely lacking on PC. There's a slight Darksiders bent to it as well but in this game your avatar is actually likeable. If you liked Runic and this game is even remotely intriguing to you then you should definitely buy it on a 50% sale.

I finished this last night and now I don't know what to do with my life. I hope there's another one. I'd like to see a little camera control, but otherwise a great game. It's a beautiful world.

Hob is a great game. I really enjoyed this one.