Find and rescue your uncle by using his newest invention to work your way through a crazy complex mansion as you switch between dimensions and solve puzzles!
User reviews:
Recent:
Very Positive (18 reviews) - 94% of the 18 user reviews in the last 30 days are positive.
Overall:
Very Positive (1,013 reviews) - 85% of the 1,013 user reviews for this game are positive.
Release Date: Jun 21, 2012

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About This Game

When you, as a young boy, are dropped off to visit your uncle, you notice something’s wrong. First, he’s not there to greet you. Second, there’s the explosion that happened right as you arrived. And third, the house seems to be even weirder than you remembered it. Now, your job is to find—and ultimately rescue—your uncle, by using his newest invention, the Interdimensional Shift Device (or IDS), to switch between dimensions and solve puzzles. That sofa too heavy to move? There’s a dimension for that! Switch to Fluffy Dimension and that sofa is now light as a feather. Need to get up to a high ledge? There’s a dimension for that! Just switch to Anti-Gravity Dimension and things begin to float upward. Need to make things heavier? There’s a dimension for th—well, you get the idea. Switch dimensions in real time, work your way through the crazy complex mansion wings and rescue your uncle!

System Requirements

    Minimum:
    • OS:Windows 7 SP1
    • Processor:Intel Core 2 Duo 2.2 Ghz / AMD Athlon x2 64 3800+
    • Memory:2 GB RAM
    • Graphics:GeForce 8800 GT 512 MB / ATI Radeon HD 2900 512 MB
    • Hard Drive:1.75 GB HD space
    • Sound:DirectX9 compatible sound card
    Recommended:
    • OS:Windows 7 SP1
    • Processor:Intel Core 2 Duo 3 GHz E8400
    • Memory:2 GB RAM
    • Graphics:nVidia GeForce 9500 GT / ATI Radeon HD 2900
    • Hard Drive:1.75 GB HD space
    • Sound:DirectX9 compatible sound card
Customer reviews
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Recent:
Very Positive (18 reviews)
Overall:
Very Positive (1,013 reviews)
Recently Posted
TeenJackBauer
( 7.1 hrs on record )
Posted: May 27
7.5/10 TJBs
Helpful? Yes No Funny
Linkblade
( 6.5 hrs on record )
Posted: May 21
This sums it up in a few words:
First-Person movement puzzle game with light and heavy objects, switches to be pressed by heavy objects, Minor spoiler: time-control and gravity effects.

The first half of the game is a bit boring, the puzzles are too easy. But when you get to the second half it's quite ok. The game reminds of Portal. For example (Minor spoiler) : you use your abilities to transport an object to a switch, which can only then be pressed to open the door for you to get into the next room. Or you slow down time to ride on fast moving objects and hopping from one to another.

6 hours play-through time.

Only recommended for people who would like to play an easy version of Portal.
Helpful? Yes No Funny
FireGodz
( 9.4 hrs on record )
Posted: May 18
Awesome loved it 9/10
Helpful? Yes No Funny
gunshot12222
( 5.9 hrs on record )
Posted: May 17
Quantum Conundrum is an excellently made quirky puzzle game that'll have you switching between 4 different dimensions(light, heavy, slow time and reverse gravity)in order to complete a series of puzzles. The game introduces new dimensions and concepts at a nice pace and will take roughly 6hrs to complete. The game is very relaxed as the puzzles are not too difficult so you'll always progress at a nice pace, and the game has an excellent art style and direction. The games option menu is very good, different volume sliders, gfx options and fully rebindable keys which is excellent. It certainly feels like a very polished game.
If you love games like Portal and Q.U.B.E then you're going to love this game. Thoroughly enjoyable experience and well worth the money.
Helpful? Yes No Funny
[E∞S] Jynx
( 14.6 hrs on record )
Posted: May 14
Bought this game, got to the like the 10th room before physics started to not apply and game broke. Game started acting the way that it's not suposed to act. I can't progress. DON'T BUY!!!
Helpful? Yes No Funny
coklatberlari
( 7.2 hrs on record )
Posted: May 13
thanks to half life 2 physic engine, now we got another (quite) interesting fps puzzle game.
+good puzzle mechanics (spoiler : there are four tools to alter the world in this game)
+very simple puzzle. (which is great, for me. please dont hate me xD )
+bizzare story
+that uncle GLaDos

-repetitive areas and objects
- the endings (spoiler: its not going to be like portal or magrunner, which have 2 part of story )
-very short.

overall, good casual game to spend your weekend.
Helpful? Yes No Funny
Monkey Squirts
( 1.0 hrs on record )
Posted: May 10
Pretty much got this game for TF2 items a few years back :P, but anyways it's a pretty good puzzle game.
Helpful? Yes No Funny
A G H
( 7.7 hrs on record )
Posted: May 9
It's a tough review because I initially found this very enjoyable...as like a 5-7 hour game it would have been great...but I just go soooo tired of it around the 8 hour mark, I couldn't be bothered continuing.
Helpful? Yes No Funny
SaucyMcTruckster, OP
( 0.4 hrs on record )
Posted: May 9
Portal with John ♥♥♥♥ing DeLancie
Helpful? Yes No Funny
Traveling_Man
( 23.2 hrs on record )
Posted: May 8
I really like this game. It's a fun puzzle/platformer with a similar feel to Portal. It's not all that difficult but it also isn't too easy. The DLC is where the real challenging levels where for me. It has great physics, which is really important, because all the puzzles are physics based. Really the only thing else I want from this game, is for someone to make a mod adding Vive support,
Helpful? Yes No Funny
cmc281
( 8.5 hrs on record )
Posted: May 8
Absolutely love it. It makes me think, sometimes it makes me curse in frustration, and the dialog is funny and interesting. Totally worth the money for the game.
Helpful? Yes No Funny
GreeN
( 7.6 hrs on record )
Posted: May 5
A good game. Very similar feel to Portal; well produced, tight controls, nice and clean aesthetics, medium difficulty puzzles, but the story is what is missing here. There's really not much to the story at all and the game does seem a bit empty because of it, but there is still a great deal of fun to be had in the levels themselves. Well worth the price.
Helpful? Yes No Funny
humanvoid007
( 7.8 hrs on record )
Posted: April 28
This game is challenging, hilarious, and fun!
Helpful? Yes No Funny
MaTTo
( 4.2 hrs on record )
Posted: April 25
I have never really played a puzzle game besides portal, but this game was fun anyway! for my it was a unique and different experience (I usually play FPS's or RPG's). I like how you don't have to be a hardcore puzzle gamer for you to work out the variety of different puzzles throughout this game!

10/10 would want to have Ike as a pet
Helpful? Yes No Funny
Codex_of_Wisdom
( 6.5 hrs on record )
Posted: April 24
Another great puzzle game, themed heavily on Portal. You change physics around you to solve the puzzles. I've heard it described as "baby's first Portal" and that is a decent summary of it. The puzzles are a bit easy, though that doesn't take away from the fun. The doctor is very clearly based on GLaDOS, but John DeLancie does a wonderful job of voicing, and the script pulls it off pretty well.

If you like puzzles, physics, or Portal, it's worth picking up, especially on sale.
Helpful? Yes No Funny
Cache
( 6.2 hrs on record )
Posted: April 23
With Portal, finding the solution is challenging but executing that solution is easy. With Quantum Conundrum, finding the solution is simple but executing that solution is challenging. If you prefer solving problems over timing your jumps just right, you may not find this game all that great. It's still a fun, well designed game with an interesting mechanic.
Helpful? Yes No Funny
UltimateXero
( 10.8 hrs on record )
Posted: April 19
If you're looking for the best and most fun portal-like game starting with a Q, this is it. The concept of changing mass, reversing gravity, and slowing down time makes for some really unique physics and logic puzzles. It also has first person platforming (which a lot of people hate) but that really wasn't difficult for me with a controller. As a bonus, the narration is done by John De Lancie who does a really fantastic job and has a great voice.

The DLC sadly, does not have narration and is just more levels for no good reason. It seems they had story ideas but they ran out of time. Luckily, the puzzles are well-made, even if they are way harder than anything in the base game.

And as a final note, this game has next to no advanced graphics options so if you don't meet the recommended specs, be prepared to have low framerate the whole time.
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Violet Knife updating.....17%
( 10.3 hrs on record )
Posted: April 13
Pretty fun, gave it a go a few years ago and left it, came back to it and finished it within a few days, awesome voice actor (It's Q, how could you hate that) while the asthetic can get a little tired at times, the puzzles are pretty interesting, when you get the 3rd and 4th dimensions just woa....lots of fun
Kim Switft knows how to make good fp puzzle games, and thats no easy feat.
give it a go ya ♥♥♥♥♥♥♥s
Helpful? Yes No Funny
ShepherdMonk
( 34.1 hrs on record )
Posted: April 12
Definitely not the calibur of Portal or Talos Principle, but has its merits. Quantum Conundrum reuses a lot of environments and objects, but yields very entertaining first person physics puzzles and 10-year old science joke dialogue. Worth a runthrough for a small price.
Helpful? Yes No Funny
Mr. Warmo
( 6.9 hrs on record )
Posted: April 10
Took me 4 years to get round to complete it, and was left disappointed. Originally devised by somebody who worked at valve, a team of designers and the amazing John D Lancie from star trek etc, what could have gone wrong? Well everything because the studio shut down one game later in 2014

The idea and gameplay is amazing, the idea of switching dimentions. Trying to copy the puzzle formula from Portal but partly succseeding and the other half knock-off from Portal

My main problem with the game is the story, throughout the game you are explained a 'super IDS' supposedly a upgrade to the glove your character wears to control dimentions. You dreams are shattered when the ending is played. Which everything comes down to a 20 second cutscene of nothing. A interesting story comes to a full stop as if the writer just got up and left and forgot to come back, which is very disappointing.

There is also DLC but after being so disappointed I decided not to waste time with it


The only good thing that came out of this is the desire for Portal 3 and the TF2 items I recieved when I pre-ordered the game
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
4 of 6 people (67%) found this review helpful
Recommended
7.2 hrs on record
Posted: May 13
thanks to half life 2 physic engine, now we got another (quite) interesting fps puzzle game.
+good puzzle mechanics (spoiler : there are four tools to alter the world in this game)
+very simple puzzle. (which is great, for me. please dont hate me xD )
+bizzare story
+that uncle GLaDos

-repetitive areas and objects
- the endings (spoiler: its not going to be like portal or magrunner, which have 2 part of story )
-very short.

overall, good casual game to spend your weekend.
Was this review helpful? Yes No Funny
Most Helpful Reviews  In the past 90 days
4 of 4 people (100%) found this review helpful
Recommended
6.5 hrs on record
Posted: April 24
Another great puzzle game, themed heavily on Portal. You change physics around you to solve the puzzles. I've heard it described as "baby's first Portal" and that is a decent summary of it. The puzzles are a bit easy, though that doesn't take away from the fun. The doctor is very clearly based on GLaDOS, but John DeLancie does a wonderful job of voicing, and the script pulls it off pretty well.

If you like puzzles, physics, or Portal, it's worth picking up, especially on sale.
Was this review helpful? Yes No Funny
2 of 2 people (100%) found this review helpful
1 person found this review funny
Recommended
17.1 hrs on record
Posted: March 26
This game is wonderful, When I first got it I was skeptical because of the bad reviews.
I can tell you that the game is FAR BETTER than I ever expected it to be.

The mechanics are wonderful, I havn't found any single level to be too difficult (not even in the weird platforming heavy levels, and I suck at platforming-anything!)

Uncle Quadwrangle (The crazy-♥♥♥ guy living in this weird-♥♥♥ mansion) Is a pretty good character, I mostly enjoyed the ocassional humor (which is basically the only reason he exists).

Overall, the game has one or two VERY VERY VERY VERY MINOR speedbumps. But none of them are in the puzzels or the games mechanics. I also found it fairly charming and entertaining (some levels were easier than others, but the shift goals are fun) :)

Buy this game if you want a wonderful bunch of mechanics and really well made puzzels. :D
Was this review helpful? Yes No Funny
2 of 3 people (67%) found this review helpful
1 person found this review funny
Recommended
5.7 hrs on record
Posted: March 5
its a game like protal there is a story and some puzzels pretty nice to enjoy after a hard day school/work its not that hard but not very ez ez so yea for this price thumbs up
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3 of 5 people (60%) found this review helpful
1 of 2 people (50%) found this review helpful
Recommended
10.2 hrs on record
Posted: March 7
It's like portal without portals 10/10
Was this review helpful? Yes No Funny
1 of 2 people (50%) found this review helpful
Recommended
6.8 hrs on record
Posted: March 21
A very fun game with many interesting elements to altering reality for platforming and puzzel solving such as making safes light and fluffy so you can pick them up, reversing time and manymore fun and interesting little things to do!

I'd highly recommend it to anyone who is a fan of puzzle-platform games :)
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Most Helpful Reviews  In the past 180 days
57 of 86 people (66%) found this review helpful
4 people found this review funny
Not Recommended
5.2 hrs on record
Posted: February 7
What could have been a wonderful puzzle game is ruined by so many levels designed around sensitive platforming mechanics. I really gave this game a chance as it has a lovely concept for puzzles. But after my frustration level became just too much I uninstalled the game unfinished. I found myself in so many levels where I had solved the puzzle and knew exactly what to do but just couldn't pull of the complicated jumps or positioning that was required. Often I was doing a puzzle over 10 times and failing every time because I didn't quite make the jump or I wasn't quite standing in the right place. I knew what to do. I had solved the puzzle part. But I couldn't pull of the platforming aspect. If you like platformers and puzzles but really go for the platforming aspect than this really is a good game. If you like puzzle games like Portal but aren't the most agile of gamer in platformers, then I highly recommend skipping this title.
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21 of 25 people (84%) found this review helpful
4 people found this review funny
Recommended
6.1 hrs on record
Posted: December 10, 2015
this game is my answer whenever someone ask me what my favorite game of all time is. stirring story, cosy stages, overwhelmingly entertaining puzzles, genuine humor and everything I look for havin' fun in a game. I wish there was a sequal for it. I had my best times while playin'. 4 different dimension supply a huge variety on complexity and not only that it has awesome gameplay trough with it. I always thought that could cause lots of improvement in game industry but it's been 3 years and yet all we got is "The Talos Principle". I really think developers should look up for this game and draw a lesson. that's the stuff we need more and more. I dont know what kim swift doin' these days but we need her back really bad zxzxzx.
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17 of 20 people (85%) found this review helpful
Recommended
6.3 hrs on record
Posted: January 5
I really wish there was a maybe. The puzzles are fun, but later on in the game this becomes more like a platformer and I have trouble jumping and hitting buttons in time to do the stunts which is frustrating. This isn't the Portal rival I thought it would be, although the first levels definitely fooled me into thinking it would be!
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13 of 21 people (62%) found this review helpful
1 person found this review funny
Not Recommended
1.8 hrs on record
Posted: February 5
"Kinda like Portal but not as good."
That was the description I was told when I asked about this game.

And, I have to agree. The game has a professor character that tries to spice up the puzzles with commentary, but they're just not that interesting a character.
Estranged-Uncle-Genius-That-Loves-Grandchild-But-Treats-Them-Like-Dirt has surprisingly been done before several times, and this one doen't really stand out from the crowd.

The puzzles are fine - they fluctuate between boring and interesting, but, honestly, it just feels like there are too many of them (or at least too many that feel the same).

Further in, the game has an odd paradigm shift where it focuses more on accurate platforming than solving a particular problem. The main gripe I have here is that the jump doesn't allow for much mid-air adjustment. So, once you jump, you better hope you did it right or you're going to fall.
Also, there's a weird physics quirk where, if you're moving through the air and collide with anything you just stop dead and fall straight down - which feels off if I'm in a dimension where everything weighs next to nothing and should just bounce off me.

I don't think the Portal comparison is unfair, either. The reason why Portal just feels better as a physics puzzler even though this game has similar puzzles is that in Portal, if you need to make an adjustment, its instant. Just aim and make a new portal.
In this game, the dimensions mechanic is all about the spawned in items the game gives you to solve the puzzles. Meaning, if you mess up, you have to go back to the spawn tube to fetch the items and start over. Respawning the items resets all of them, so even if some are already in a spot you want them, if you drop one down a hole or get a bad bounce into a laser, you have to start all over.
Which just makes a tedious game feel like it drags on more than it already does.

Okay game. Get it if you really like physics puzzlers, otherwise skip it.
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10 of 16 people (63%) found this review helpful
3 people found this review funny
Recommended
5.3 hrs on record
Posted: December 24, 2015
If you are a sucker for 3d puzzle platformers this should be something you enjoy. Just be warned most of the puzzles are fairly easy and you need to buy the DLCs if you want something more challenging.

Rating: Best game ever
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2 of 3 people (67%) found this review helpful
Recommended
9.5 hrs on record
Posted: February 2
This game is just too much fun!
Was this review helpful? Yes No Funny
2 of 3 people (67%) found this review helpful
Recommended
13.2 hrs on record
Posted: February 3
Wonderful game. Realy makes you think outside the parrallelogram. Any fan of the Portal series will love this game.
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2 of 3 people (67%) found this review helpful
Recommended
6.3 hrs on record
Posted: February 2
A funny and imaginative twist on a few interesting puzzle concepts put together. The dialog and humor are on key, very reminiscent of the type of science-based comedy found in the Portal games. Each puzzle is fairly well put together based around the few puzzle aspects. The puzzles revolve around the possibility to "swap between dimensions." Each dimension gives the puzzles a new 'dimension' that it can take on. Aside from the dimensions, puzzles are mostly button pressing and platforming based. A few points are rather buggy or difficult, but otherwise a fun game. The humor alone is enough to get this game, and it will keep you playing through. It's cheap enough to get now, or on sale, so if you like puzzles or good science themed jokes, get this game.
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1 of 2 people (50%) found this review helpful
Recommended
5.1 hrs on record
Posted: January 15
Easy and relaxing puzzles, and funny dialogues.
But the laser sounds are quite annoying.
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1 of 2 people (50%) found this review helpful
Recommended
1.6 hrs on record
Posted: February 22
Pretty good, not 5 stars, but 4 and a half and a quarter, VERY close, but I kinda got bored after a while, still though, great game, and I love the story. :)
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Most Helpful Reviews  Overall
53 of 56 people (95%) found this review helpful
15 people found this review funny
Recommended
13.6 hrs on record
Posted: April 27, 2015
Q: What do you get if you cross Portal's wacky physics puzzles with a modernized, gorgeously realized Tex Avery-like art style, and add in a mad scientist voiced by John de Lancie ("Q" from Star Trek: The Next Generation)?

A: Well, if any of that description made you perk your ears up and drool, then you probably already own this game. And hey, the great thing is, if you absolutely hate any part of that description, you will probably avoid this. Easy!

It's a great game, and really, really scratches the Portal itch. The animations and artwork in the game are charming, demented and sometimes unspeakably cute. (I love the machines that barf crates! I love them so much!) De Lancie is suitably crazy, but not maliciously so -- he's just very determinedly absent-minded, that's all! The areas are filled with a nice array of collectibles, the game runs smoothly... I can't really find too many things wrong with this.

Well, except one: I'm stupid and haven't been able to finish the game yet. But chances are WILDLY in favor of you being much smarter than I am, and so you have nothing to worry about!

Adorably exasperating game.
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57 of 67 people (85%) found this review helpful
2 people found this review funny
Recommended
6.1 hrs on record
Posted: November 28, 2013
Shortly:
Love a good cartoon? You're welcome :)
Love a good puzzle? Close the page :(

Pros: visuals and such: stunning design, not bad graphics, nice atmosphere and jokes, John de Lancie as Professor Quadwrangle, original story, price
Cons: actual gameplay: pretty short (there are some DLCs out there though), not many good puzzles, requires more jumping skills than thinking ones, freaking tons of blur

The long way:
I love this game. Yeah, that simple, just as simple as the game is. It has nice design, good 3d-cartoon-like graphics and jokes which are really good (well, sometimes they aren't, but nothing is perfect in this world). The main problems are the puzzles and length of the game itself - I've run through it in ~6 hours, but I haven't got 100% completion though. Now about the puzzles. They are simple as well, but that's not good this time. You won't find any really hard-brainsmashing-cool-etc puzzles in this game - all of them are considerably easy. Also, this game has a lot of platforming. I like this, but you may not if you're looking for a brain challenge.

PS: I'm sorry if my English is bad, it's not my native language.
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30 of 34 people (88%) found this review helpful
3 people found this review funny
Recommended
23.2 hrs on record
Posted: October 18, 2014
Rating : 8/10
Overview: 1st person puzzle platformer

The Good:

+ The game allows you to switch between 4 different dimensions to solve puzzles and traverse the environment. The first dimension is 'fluffy' dimension, which makes objects lighter allowing you to carry them and place them on switches. The second, is heavy dimension, which makes objects heavier, the third is slow time and the fourth is reverse gravity. You can only be in one dimension at a time.

+ The game offers a mix of puzzles and platforming. Some areas are strictly related to one or the other while other areas combine the two. It provides a nice change in pace as you are not strictly doing one thing over and over again.

+The most important part of a puzzle game is the balance between fun and challenging. This game does a great job of finding the right balance. Solving puzzles offers a satisfactory feeling and feels very rewarding. The puzzles were not super easy nor were they impossible to solve, with careful thinking and planning you should have no problem with the game.

+The game offers a nice art style that compliments the game

+Every puzzle offers a time and shift goal offering a lot of replay ability if your into that sort of thing.

The Average:

-The game takes place in your uncles mansion while he provides witty banter to you throughout your journey. The problem is the dialogue isn't very funny or witty and the voice acting annoyed me.

The Bad:

-The ending is very lackluster

-Despite the great puzzle design there will always be frustrating moments in a game like this. Too many times I wanted to jump off a platform and the game didn't register my jump, a problem with most 1st person platforming games

-Though I loved the main game puzzle design the DLC levels are frustrating. I said there is a balance between fun and challenging and most of the DLC levels go way too far in the challenging category to the point where I was more frustrated than having fun.

Conclusion:

I really enjoyed my time with this game and if you are looking for a solid puzzle game then this is worth checking out.
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