There is an unusual cabin deep in the woods. It had served as a laboratory and a dwelling for three generations of Lodgers. But as of late the latest Lodger has been noticing weird changes in familiar surroundings; things are missing, noises and rattle heard. Something odd is coming out of the woods.
User reviews:
Very Positive (22 reviews) - 81% of the 22 user reviews in the last 30 days are positive.
Very Positive (729 reviews) - 88% of the 729 user reviews for this game are positive.
Release Date: Oct 4, 2013

Sign in to add this item to your wishlist, follow it, or mark it as not interested

Buy Knock-knock


Recent updates View all (9)

August 23

Pathologic Reimagining on Steam
The not-yet-real existence of the new Pathologic has just found additional tangibility: the game has a Steam page now. If you want to keep an eye on the game’s progress and news, there’s no better way of doing so than following said page.

And you may need to do the eye-keeping for a bit longer than we were hoping. The game’s release will be postponed until Autumn, 2017. Why? Basically, Pathologic has grown in scope and ambitiousness since its inception, so it demands additional time and man-hours now. Find out more here.

But hey, at least it has a Steam page.

It’s like we’re halfway there.

7 comments Read more

About This Game

There is an unusual cabin deep in the woods. It had served as a laboratory and a dwelling for three generations of Lodgers.

But as of late the latest Lodger has been noticing weird changes in familiar surroundings; things are missing, noises and rattle heard. Something odd is coming out of the woods. Come night, it seems like someone's made himself at home in the twilight of rooms, attics, and cellars.

You need to stay awake and sane till dawn.

The Lodger is wandering the rooms, evading the unknown, counting minutes till morning. But it's only in the night that he can solve the main puzzle and find the answers. What's going on? Are the Guests real, or are they just figments of his insomniac imagination? What'd happened to the forest? What's happening to the cabin? Is there a line between reality and imagination?

Gameplay details

  • Hide! Play hide-and-seek with denizens of your nightmares.
  • Don't look now! The goal of each night is to reach dawn while still sane.
  • Fill in the gaps. The house aids the Lodger. You only have to fix it up and keep it in order.
  • Seek. The Lodger has lost something very important. The reason for what is happening is somewhere inside. Everything that is happening can be explained, you only need to find the key and bring it to light.
  • Wait. In this game you need to watch and listen carefully. Inspect and scrutinize. You only have to last until the sunrise.
  • Follow the rules of the game! Of course you must first understand the game being played with you.

System Requirements

Mac OS X
SteamOS + Linux
    • OS: Windows XP or later
    • Graphics: GPU that supports shader model 2.0
    • Storage: 700 MB available space
    • OS: Mac OS X 10.5 or later
    • Graphics: Intel HD Graphics 3000
    • Storage: 700 MB available space
    • Graphics: Intel HD Graphics 4000
    • OS: Ubuntu 10.10 or later
    • Graphics: GPU that supports shader model 2.0
    • Storage: 700 MB available space
Customer reviews
Customer Review system updated Sept. 2016! Learn more
Very Positive (22 reviews)
Very Positive (729 reviews)
Review Type

Purchase Type


Display As:

(what is this?)
294 reviews match the filters above ( Very Positive)
Most Helpful Reviews  In the past 30 days
4 of 5 people (80%) found this review helpful
2 people found this review funny
4.3 hrs on record
Posted: October 8
OBJECTIVELY it's a great game with mysterious atmosphere.

SUBJECTIVELY I ♥♥♥♥ing hate it. It goes just like all of the previous dev's games.
"Here is a thing. It might be a game, but there is no guarantee. We're not going to tell you how to play it, besides a basic mechanic. We might throw in some hints but only when it's too late. Interpret them as you wish. Oh, and it might have an ending. Or five. But if you want to achieve a state of the game that a normal person would consider a good ending, you must look up a guide, restart the game and then bite yourself in the ♥♥♥ while licking your elbow. GL;HF."

Was this review helpful? Yes No Funny
1 of 2 people (50%) found this review helpful
Not Recommended
5.5 hrs on record
Posted: October 16
walk turn on light do it again again and again
Was this review helpful? Yes No Funny
Most Helpful Reviews  Overall
101 of 108 people (94%) found this review helpful
2 people found this review funny
13.8 hrs on record
Posted: October 21, 2014
This entire game takes place in one night(watch the clock when you have the lantern) in spasms of sleep walking and brief bad dreams. I loved it, but it made me angry, and I am sure it'll make you angry, too.

My girlfriend and I played this together, off and on for three days, trying to get the "good ending." Two things: One, it deliberately obfuscates its own systems. As in, learning the rules and dying in the process is part of the game. Two, it is about general tension and anxiety-- the atmosphere of absolute ick, not shock scares but pervasive questions about what you accept as real. It is a strangely gross-feeling game that manages to put you in a completely agitated state. Not terrified, not disgusted, not creeped out. Just agitated. To the extreme. You know, like an insomniac. Which is the point of the game. That skin-crawly, nothing-is-quite-right feeling. A world out of place.

-IF- that kind of tension and weirdness appeals, and you think it might be a cool experience to live through/conquer/think about, this is an excellent game. But I also get the feeling it'll ♥♥♥♥ a lot of people off. Whether you'd like it or not, worth experiencing.
Was this review helpful? Yes No Funny
154 of 183 people (84%) found this review helpful
1 person found this review funny
3.4 hrs on record
Posted: December 4, 2013
Knock-Knock is the proof that video games really can be an art. It is a very deep and complicated game. It is not a horror nor a puzzle game, and critics who blame the game for not being scary or something like that have completely missed the point. Knock-Knock doesn't just tell you a story, it plays with your mind and asks YOU the questions.
Was this review helpful? Yes No Funny
60 of 67 people (90%) found this review helpful
1 person found this review funny
6.6 hrs on record
Posted: June 6, 2014
After playing for some hours I may be somewhat stuck in Knock Knock. The game is not clear on what you must do or how you must do it. It's okay, many games do this and it's nice for us to discover on our own (Dark Souls). However I reached one of the last levels and it seems that if you do not proceed to the next level/room/dream/nightmare whatever you want to call it, you may be getting a "Game Over" screen the next time you will try to advance to the next level just like you normally would do.

Knock Knock have a very creepy and depressive atmosphere. Seems to be a great game to play in the upcoming Halloween. You will always feel that you are surrounded by someone or something, yet, you feel alone at the same time.

Now this is very clever: There are things that really help to create a tense mood in the game with such basic gameplay elements. Let's say something is approaching you. You hide but you are still visible. It's okay, because it does not matter if they can see you since it's you that can't see them, because, if you see them/it then it means they are real and if you believe they are real, then you must be hallucinating meaning you are losing it.

The game have more than one way to end, or to not end at all, in fact. Depending on some actions across the game, when you proceed further a larger enemy may be something for you and a very different one for me.

Immersion tip: In this game the sound of doors opening and closing are quite regular. If you have a sound system with a Subwoofer, placing the Sub below your desk near one of the corners gives you a much more real feeling that something or someone is really knocking a door in your house. This adds to the atmosphere giving you a more intensifying experience especially when everything is silenced and then "BAM!", someone shuts a door, and you feel the vibration.

In my opinion you don't get those jump scares we sometimes see (faked or not) on Youtube videos from games like Amnesia. In this game instead of "AAAH, Oh my God & Buddha, that is scary!!!" I got something more of: "That is creepy... go away, please, I don't want to look :( Just... leave me alone... :( " and that, is really rare in a game.
Was this review helpful? Yes No Funny
45 of 55 people (82%) found this review helpful
6.8 hrs on record
Posted: January 5, 2014
I can recommend this game only to those who are not afraid of experiments: few gameplay, lots of reflection and, perhaps, a pinch of horror.
Was this review helpful? Yes No Funny
41 of 50 people (82%) found this review helpful
8.8 hrs on record
Posted: November 26, 2013

To conclude, Knock Knock is certainly a very different type of slow methodical game that relies on its solitary experience, the unexpected and its simplicity to ram home its point - which it does with an unabashed aplomb. And to think that fixing light bulbs in a game could be considered interesting is well proven here and it's this factor which makes the game a joy to play - even if you don't "get it" right away. For the asking price, the entertainment value is well worth it and a must play game if you like unconventional gems such as this one.

Score 8.5/10 - Review by Robert Cram
Was this review helpful? Yes No Funny
28 of 32 people (88%) found this review helpful
3.1 hrs on record
Posted: July 6, 2015
Knock-knock is a deeply unnerving game that manages to succeed at what it sets out to do.

From the start you get to meet the charming Lodger as he briefly teaches you just how things are in his home. From there it's up to you to figure out the rest. You have six days and nights to adjust and learn, and then from there the game really begins. The time limit is pretty strict, so if you haven't figured out what you're doing by then, don't expect to survive. I barely managed on my first time with just a teensy bit of time left. Overall that stress of time and all the things out and inside your home coming after you is something that sticks with you for quite a while. Though the game does begin dull, once things speed up it truly feels like a game and all those horrifying things out there become all the more horrifying. I'd rather not say much since there are some great ideas in place and it's better to experience them for yourself than not. That's what the first six nights are for after all, just experimenting and figuring out the most effecient way of doing things.

There are flaws though, this game is heavy on RNG. Though skill can help you through most of what you're trying to accomplish, exploring the forest on a time limit is a bit much since there's no easy way to find your way home again rather than just go forwards and hope for the best. There's no guarentee that you'll figure out just what you're supposed to be doing out there without a hint or two either, though thankfully there are enough hints to make people explore the forest at least once or twice early on. Even worse, once you enter the night phases, enemies can and will spawn near you and remain there for long periods, often trapping you in a corner. Or worse, a roaming enemy will follow with it. Touching a solitary enemy is a minor time loss while touching a roamer will set you back a massive amount, but even a minor time loss is a lot here. The game's pretty well designed however and you figure out just what you should be doing before long, though there's little room for error so a few hints are always welcome.

So yeah, Knock-knock surprises though you need to give it a bit of time to shine and be patient through the less enjoyable segments. Not recommended for those who are effected by surrealistic imagry as half of this game's horror is based on that with the other half being existence and dementia based. If you think you can take it, pick it up.
Was this review helpful? Yes No Funny
27 of 33 people (82%) found this review helpful
22.9 hrs on record
Posted: October 14, 2013
Knock-Knock is a little rumination about what is more dire, demons from within or from the outside? In this game you must figure out all by yourself how to play it to revel in its entirety. There are general rules told imperceptibly but each one of them has sides it takes time and retries to grasp. Knock-Knock is frustrating, hard and irritating at times, but it remains captivatingly horrifying all through the end. Lend it your ears, pay attention and believe in what you see or decide not to — control the outcome with the help of your senses.

With ingenious intended glitches like those from Anodyne, beautifully drawn visual style similar to Don't Starve's and cunning survival horror mechanics which really do improve the genre. Knock-Knock, despite not being the same game it was intended originally, is still a "phenomenon" which you absolutely should observe.
Was this review helpful? Yes No Funny
22 of 26 people (85%) found this review helpful
4 people found this review funny
3.5 hrs on record
Posted: October 1, 2015
Any game that claims to not be a game is throwing up a pretty big red flag right there. Knock-knock does that in the opening splash screen, and if anyone besides Ice-pick Lodge made it, I probably would have taken a pass on it. But the creators of Pathologic and The Void know what they're doing on that front, and the result is an intriguing little journey that definitely has its moments.

You take on the role of the Lodger, a wired little fellow that looks like Calvin ditched Hobbes and took up meth. Something odd is afoot in his isolated home in the woods, and if I get any more specific than that I'm bound to spoil something. Much like all of Ice-pick's games, the actual game is figuring out the rules of the game. You can turn lights in the house on and off, hide behind furniture, force open doors, and advance time with a strangely narcissistic clock. Ostensibly your goal is to survive until morning, but the house and its... inhabitants are randomized every other day, and on the other days you spend a chunk of it in the woods. Even the goals themselves get muddled as you progress, and the game is not afraid of throwing entirely new mechanics at you a few hours in.

Once you understand the pattern to the game, it can admittedly get pretty repetitive. New challenges are introduced the further into the game you get, but the core gameplay of lighting up rooms and wandering the woods does not change. One thing it does do well is introduce new threats over time, and some of them are absolutely terrifying despite the almost cartoony presentation. Information on the story comes from many different places, including the Lodger's diary, notes between days, and the Lodger himself, who talks in a charming nonsense Sims language. Most of the way through the game I'm still unclear on much of the rules and plot, but I admit it's fulfilled its original promise of "interactive meditation" and kept my attention. Definitely worth a look if you are at all curious, but be prepared for the mystery and horror to carry some rather bland gameplay.
Was this review helpful? Yes No Funny
Recently Posted
9.5 hrs
Posted: October 19
Knock-knock...Игра отличная,вот только прохоидл я игру,раз 6 ♥♥♥♥♥♥♥♥!!!!для выполнения всех достижений........
Helpful? Yes No Funny
8.3 hrs
Posted: October 18
Great creepy little game.
Helpful? Yes No Funny
5.5 hrs
Posted: October 16
I was pausing the game and afk, then, a loud banging noise play and the girl said "is anybody home?"
Helpful? Yes No Funny
Spike Spiegel
0.8 hrs
Posted: October 15
I'm a large fan of Ice-Pick's other works and I know they have a habit of not explaining the gameplay but this is just too much; I have had to restart the 3rd level 15 times now and I have no idea what I am doing wrong or what I should be doing at all, this is just too much and comes as quite a dissapointment. I loved the creepy setting at first but after doing that level over and over again and seeing the same assets and sound effects used it becomes merely an annoyance. I checked online to see if more interesting events pop up later on in the game but it seems like pretty much the entire game is just wondering the houses over and over again. I would be more okay with this just being another random bad horror game but I feel much more dissapointed that Ice-Pick made it; oh well, no developer can be perfect all the time.
Helpful? Yes No Funny
1.6 hrs
Posted: October 15
because of this game, I became afraid of the dark!
Helpful? Yes No Funny
4.5 hrs
Posted: October 11
This is that kind of game that plays with your mind and nerves, that kind of game that needs to be played 2 times in order to get the good ending, because you will usually fail the first time. I haven't had the patience to play it the second time, unfortunately, but heck, if I had a looot of time on my hands, for sure I'd play it again. This game is like that kind of game you don't stumble upon everyday. Play it.
Helpful? Yes No Funny
2.0 hrs
Posted: October 11
Great tension/weird game

Somewhat unclear in its mechanisms, but this is intentional as a way to make you feel trapped and lost like the main character.

Worth it full price, absolutely need to buy if horror fan and on sales
Helpful? Yes No Funny
10.7 hrs
Posted: September 18

Let me level with you. I played the game and ended up in loop where I couldn't escape from.
I failed to understand quickly enough what needed to be done and the game punished me for it and only way to escape this fate was to restart the whole damn thing.

And I hated it for it.

The game was really athmospheric, I gave that to it. But rest of it I honestly did not like.

But the game stuck to my head. I still bondered it. I decided to gave it an other shot. Since I didn't get it on the first time, maybe now that I knew what to do. It would be ok.

Well it wasn't, I barely made it passed the ending but managed in the nick of time to finish the game. There done, never again. Bad game, 'nuff said.

And a day later I Realized it was me who was at fault. The game was just difficult, and I didn't get it at first. The game was suppossed to be hard, I just missintepreted it.

Do I recommend this game I only understood after some time. Yes, yes I do. But no for everyone, definately not for everyone.
Helpful? Yes No Funny