While it was not intentional, it was a part of the FPS controller via Unity's Standard Assets, there is a sprint option with left shift.

I do agree, in regards, to the 4x4 puzzle.  It is removed on the next version, which will be updated after the Jam ends.

Polish would be good, though I lack art skills, so those are kind of on a limited basis. In the next installment, there will be a few landmarks added, specifically one in each of the more empty rooms to give the player orientation, and forms of reference to better get a feel for the dungeon itself.  Though not a significant amount, given the fact that the purpose of the game is exploration and discovery, I.E. that the player should feel lost while navigating, but it was indeed perhaps too pervasive in the v1 of the submission. Thus the change in v2, due to be upgraded on 8/1/19, in the later hours.

Yeah, I used the FPS controller from the Unity Standard Assets, which sadly, has a whole suite of features built into it.  I suspect the camera issues might be because of that.  It was a great option for going as far as I did in such a small amount of time, but yeah, it has it's issues.  It worked more or less as intended, but it was a bit 'heavy' for the limited needs I had for it.  It did add it's own step sound effects and such, which helped as well, so I can't say it was a bad choice, but it would be a better option to make my own FPS controller if I expand the game much further  Thanks for the tips, though. :)

Thank you. :)  I'm quite glad you enjoyed it.  I have been considering the layout, the dungeon itself is intended to be somewhat labyrinthine in nature, but I think having something unique in each big room would actually give the player a better sense of where you are, without being as in your face as a minimap, or a compass.  I wanted it to be a 'lost' feeling, but it might've been a bit too much, with the lack of debris other than gameplay related. 

lol I haven't played it yet but your comment made me laugh

Yeah, the balance of the information was intentional, albeit done poorly, but intentional.  Some things needed explained, but part of the experience was the sense of having no information, thus the lack of map, or orientation.   You were meant to be lost.  The objective was self explanatory with the mundane name, though the motivation to do so was certainly not explained.  I tried to give it a bit, if you look at where you begin, you fall in through a hole.  Not exactly narrative in scope, but the idea was to allow you to observe your surroundings, and try to figure out how to get out of this strange and confusing place you've found yourself in.  The minigames in particularly needed more instruction, or perhaps a title bar to indicate what you were doing.  I noticed after I submitted that it would be easy to just grab the lockpick object without much consideration, and then when you interact with the lack of door image, you'd be thrust into the puzzle, instead of interacting with the door, finding out it's locked, and then interacting with the lockpick which tells you that you can now open locked doors.

I think the grid puzzle actually fit the theme of lockpicking, perhaps not compared to other lockpicking games, but in the sense of trying to maintain multiple other factors while adjusting further and further.  Though you are absolutely correct in needing more time with it.  I failed on the 4x4 constantly, only beat it twice, accidentally, and with luck after resetting it countless times.  I should've just not done the 4x4 version.  It was an unnecessary door, to maintain the illusion of being lost in a labyrinth, that's where I put most of the 'hard' puzzles.   I tried to keep to the idea that easy puzzles introduced the mechanic, medium puzzles (3x3) were for progressing through the dungeon, and the hard puzzles would either be 'another' entrance, or access to one of the three collectibles that would determine the ending dialogue.