Could a signal from another world have been kept secret for 40 years? Navigate a strange 3D database and work with other players to piece together what happened. Discuss your way through fragments of found footage films, journals and documentary clips about space.
User reviews: Mixed (124 reviews)
Release Date: Aug 7, 2014

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Recommended By Curators

"What's most fascinating about this is how they used Full Motion Video to make film interactive by focusing on the discussion it provokes between people."
Read the full review here.


“A complex story about murder, particles and electronic music.”

“It’s approach to multiplayer gaming feels like a slice of the future.”
Rock, Paper, Shotgun

“One of the first ever online multiplayer story games, where the main gameplay mechanic is not combat -- it's discussion”

About This Game

Cloud Chamber is a Massively Multiplayer story game.

Explore a mysterious 3D database.

Investigate and discuss story fragments with other players.

Piece together what happened from fragments of found footage, secret journals and astrophysics documentary.

In Cloud Chamber, the science is real; the story is fiction, and the truth about Space unknown.

Starring Gethin Anthony (Game of Thrones) and Jesper Christensen (Casino Royale).

The story

Players collaborate with each other to explore, investigate and discuss the fragments of information they collect on their journey through the dataworld, writing the story themselves of a young scientist, Kathleen Petersen, who risks her sanity and betrays her father to save humanity from itself.

Kathleen is forced to choose between loyalty to her father or to betray him and everything she has believed to be true. Her decision will not only determine the Petersen Institute's future, it will impact all of humanity itself.

Was Kathleen's mother Murdered?

Is Kathleen Going Mad?

What Is the Signal?


  • Experience a unique ”found footage” story that combines emails, photographs, maps, diagrams, fiction film, electronic music and documentary films from the European Space Agency into one coherent story.
  • Navigate surreal 3D levels between the parts of the story.
  • Piece together a fragmented story with more 150 story fragments spread over 10 unique levels.
  • Cooperative multiplayer: analyse & discuss the content with other players to understand what happened.
  • Gains access to locked parts of the story by evaluating other players’ theories.
  • Evaluate other players’ explanations; upvote the good, downvote the bad.
  • Make up your own mind: present your theories to other players and get their feedback.
  • Internationally acclaimed actors – Gethin Anthony (Renly Baratheon from Game of Thrones) and Jesper Christensen (Casino Royale, Quantum of Solace).
  • Film fragments filmed by the team behind the original The Killing.
  • More then 30+ movies from the European Space Agency integrated in the storyline.

System Requirements

    • OS: Microsoft Window 7
    • Processor: 1.8Gz Dual Core Processor
    • Memory: 2 GB RAM
    • Graphics: DirectX 9 compliant video card with Shader model 3.0 support. Radeon R7 240 2GB or NVIDIA GT 630 2GB
    • DirectX: Version 9.0
    • Network: Broadband Internet connection
    • Hard Drive: 5500 MB available space
    • Sound Card: Integrated
    • Additional Notes: Cloud Chamber uses QT Lite, which should auto install with the game.
    • OS: Microsoft Windows 7
    • Processor: 2.4 Gz Quad Core Processor
    • Memory: 4 GB RAM
    • Graphics: DirectX 9 compliant video card with Shader model 3.0 support. Radeon HD6850 or NVIDIA GeForce GTX 460
    • DirectX: Version 9.0
    • Network: Broadband Internet connection
    • Hard Drive: 5500 MB available space
    • Sound Card: Integrated
    • Additional Notes: Cloud Chamber uses QT Lite, which should auto install with the game.
Helpful customer reviews
11 of 12 people (92%) found this review helpful
1 person found this review funny
16.9 hrs on record
Posted: March 19
I put 16 hours into this game and I greatly enjoyed it. I'm going to give it a thumbs up because I think it's good, but I actually DON'T recommend it to new players...

First of all, what exactly is Cloud Chamber? Well it's really more of story than a game. The story is told over 10 chapters, each of which contain a series of story nodes. Each node could be a video clip (uses real actors - Renley Baratheon from Game of Thrones is one of the lead characters!), photographs, transcripts etc.

One of the things that is quite unique is in the way these nodes are delivered. In each chapter you traverse this odd sci-fi landscape going from node to node and it isn't linear. Two players are unlikely to take the same course through the game. Thus what gets delivered is little snippets of the story out of order and you find yourself trying to piece together the timeline and that's what makes it interesting and makes you want to keep going to find out what happened.

Also, another thing I have to mention is the soundtrack - it's superb. It's different in each chapter and it just merges in with the game so well really giving it a great atmosphere.

But here's the problem... in each chapter only around 2/3 of the story nodes are actually available at the start. In order to unlock the rest and thus get the full story you need to interact with other players. This works rather like a social network such as Facebook. Each story node has an attached discussion area where you comment on the node, rate up others comments, reply and so on. But in order to unlock the hidden nodes you need to get a certain number of likes / comments from other players per chapter.

This wouldn't be a problem if it was an active game but it isn't any longer. I got Cloud Chamber in a bundle around a month ago and at that time there were quite a few players and plenty of discussion. But I took my time and now, some weeks later, by the time I got to the final chapter there were just 2 active players on that chapter. We were messaging each other, replying to each others comments just so we could get through it and this felt somewhat artificial.

Having said that, yu can still get a large part of the story from the unlocked nodes. You could play through from chapter 1 -10 completely ignoring the social stuff in probably an hour or two and you wouldn't be missing that much. In a few of the later chapters the locked nodes were actually very disappointing; they used a lot of clips from science programs and it started to feel like I was back in school. This felt like low value filler content.

Finally, the ending. I won't spoil it of course but I finished the game feeling unsatisfied. As I went through the final nodes I was thinking "is this it?", and it didn't feel finished. Many questions were left unanswered which was quite frustrating.
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8 of 10 people (80%) found this review helpful
16.1 hrs on record
Posted: January 28
This review is based on 8 hours of play investigating 2 of 10 chapters, and reviewing all of the multimedia content.

If you ever wanted to be in an episode of X-files, either as sceptic or believing investigator, Cloud Chamber is for you. I learned something about astrophysics, too.

You get a case with paranormal indications, presented in the most confusing way possible, through over an hour of self-produced footage split into over 30 clips, almost another hour of material mostly taken from ESA (another 30 clips), and 120 documents to read and view . This is all organized in connected nodes set in a 3D-landscape, which restricts the order in which you can view all of this material (unless you know how to operate explorer and have an image viewer and a mp4 player such as VLC). Attached to each node is also a discussion board, where you can comment on the material and rate other players' comments, and if enough people like (or dislike) your comments, you can then access a "restricted" node on each of the 10 levels.

I scrutinize everything and look stuff up on the web on my own, so it is surprising that reading the comments still does give me new insights. The temptation to just leave the shackles of the 3D navigation system and just read all of the content directly is always there: it is so much more convenient if you want to view or freeze-frame a certain clip to be able to choose it directly from my playlist than to take the time to navigate the game interface. Given that the premise of the game is that suppressed information is being made public through the underground, one wonders why it isn't more easily accessible. If Wikileaks had operated that way, it would have faded into obscurity rather quickly.

That said, I'd rate the material as "advanced amateur production"; while the acting is good and the makers got access to some amazing locations, including a big anechoic chamber and the roof of the Radisson in Copenhagen, the distortion effects permeating the game are more aesthetic than realistic, which is difficult to disbelieve in a game that encourages you to investigate the smallest minutiae in the material. Given the low price of the game, that is still quite ok with me, actually.

Note that the ending is open: some mysteries are resolved, others are not.

I don't regret the purchase; if you like good amateur productions and don't mind navigating an interface and aesthetics that are more stylish than functional, and would like to fictionally investigate the paranormal (using the social features is optional), I recommend this game to you as well.
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6 of 8 people (75%) found this review helpful
3.5 hrs on record
Posted: December 12, 2014
Part YouTube, part Facebook, part FMV game, part adventure game.

Cloud Chamber is hard to describe and hard to recommend unless you like experiencing something different even if that something different doesn't always seem to work.

It's a multiplayer social game where you watch videos, comment on other peoples posts, and read snippets of information to piece together the mystery of a signal of unknown origin.

Oh yea, it also has an awesome electro soundtrack.

Full review:
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8 of 12 people (67%) found this review helpful
1.9 hrs on record
Posted: February 15
The game is good for people who like to watch videos and discuss them. Your comments get likes ( but I was giving them only for archvement). For others this game can be boring ( like for me). 6/10
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9 of 14 people (64%) found this review helpful
12.5 hrs on record
Posted: December 24, 2014
I really wanted to like this game. It has a nice, esoteric sci fi plot, and a great broken narrative which you as a player must gradually piece together from fragmented pieces of information like videos, emails etc. etc. The probelm that I have with the game does not lie in its storyline, or even the method of delivery. It's in the mechanic by which you need to unlock additional content. You see, if you just play through the game, you'll get about half the story. The rest is uncovered by unlokcing extra nodes along the way. Not a bad concept, but the probelm is that the way you unlock these nodes is through the use of discussions with other players. Now, on the surface this sounds like a good dynamic; you offer your thoughts on a node, you contribute to discussions which are already underway, and as you do so, you unlokc content. The problem is that it's difficult to really add anything new to the discussions. Most of the salient points have already been discussed, meaning that any contribution you attempt will sink to the bottom and go largely unread or unreplied to by other players. I appreciate that people need to contriobute in order to get the most out of the game, but in reality this has left me sat here with half the content stuiill locked, and no satisfying conclusion to the story.
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5 of 7 people (71%) found this review helpful
1 person found this review funny
2.3 hrs on record
Posted: April 15
Facebook simulator 2015
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3 of 4 people (75%) found this review helpful
20.2 hrs on record
Posted: March 5
A really hard one to review.
It's more of a "make your own theory" about what's going on and discuss it with other folks from the community.
If you are into that kind of experimental game, well you will surely enjoy it.
Tons of sci-fi elements and even more real world facts about science. :)
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4 of 6 people (67%) found this review helpful
3.7 hrs on record
Posted: February 8
even for a zero-gameplay "game" this is quite dull
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4 of 6 people (67%) found this review helpful
1 person found this review funny
0.2 hrs on record
Posted: February 24
Facebook investigator simulator
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5 of 8 people (63%) found this review helpful
31.8 hrs on record
Posted: December 18, 2014
A great story, and a welcoming community. If you loved rational-yet-esoteric TV show LOST to the end and enjoyed above all researching and discussing the mysteries, you need to play Cloud Chamber right now.
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6 of 10 people (60%) found this review helpful
8.7 hrs on record
Posted: February 9
There is no gameplay to speak of. This isn't a game, it's a Facebook simulator. But not even in an entertaining game-like way, such as how Redshirt does it.

Running this requires Quicktime, and if you pick the official install it will also come with other Apple crapware.

I cannot tell if disappearing comments are due to bugs (of which there are several show-stoppers) or hostile developer action.
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1 of 1 people (100%) found this review helpful
7.8 hrs on record
Posted: April 5
A complete new experience to get into a mysterious story by discussing scenes via social media
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2 of 3 people (67%) found this review helpful
30.2 hrs on record
Posted: February 19
Do you enjoy mystery series?
Did you ever get really caught up in an ARG?
Did you ever spend hours falling into a Wiki wormhole?
Did you put way too much time into overanalyzing every episode of LOST?
Do you enjoy taking notes and putting together timelines in order to make sense of a complex story?

If you can answer "yes" to any of these questions, than I highly recommend Cloud Chamber, a unique story-driven MMO focused on theorizing about and trying to make sense of a large number of mysterious video clips and documents.

While it is possible to enjoy the game mostly passively, i.e. by watching the content and reading other people's theories, the real fun begins once you get involved and try to unravel the mystery by yourself.

Cloud Chamber does not have a huge playerbase and it might take some time for your posts to generate some discussion, but I would argue that this game is best enjoyed at a leisurely pace, allowing for what you've seen to sink in and giving you time to make some connections.

All in all it's one of the most engaging and unusual gaming experiences I've had in a while.
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2 of 3 people (67%) found this review helpful
5.9 hrs on record
Posted: February 19
I like the concept of the game quite a bit. A game with discussion of the central mystery with other players as a key game play feature is great. Chatting back and forth with other players interpreting the clues can be really fun. There are puzzles to be solved, although you'll be doing them all yourself without any input from the game. This can be a bit offputting.

I'd love to see the main ideas that make up the game further iterated on in a future title. I think it could use some more interactivity beyond chatting with players. Maybe allow a few puzzles that need to be solved in-game to advance every now and then? Or add some more indepth research beyond reading what's given to you.

Still, Cloud Chamber is unique. It's worth checking out and supporting a promissing new type of adventure game.
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3 of 5 people (60%) found this review helpful
13.9 hrs on record
Posted: February 5
+ nice videos, solid acting
+ nice background music
+ the way the story untangles is intersting
+ the bite sized information chunks give a good pacing and don't feel like tiresome infodumps
+ no cliche evil guys, no pointless murdereing, etc.
+ lots of real space documentary snippets
+ while no final resolution is given, a lot of questions are still cleared up

- always online, game closes on connection problems instead of just reconnecting
- game requires account and doesn't remember the password
- text window could be bigger
- text input uses lots of computing power and gets sluggish
- how to progress is not quite clear
- no way to take notes
- no way to bookmark/organize information, so finding previous nodes or comparing them doesn't really work
- no indication if a node has been visited already
- there are no puzzles or stuff to unlock by figuring things out, unlock only happens via Likes
- the game starts reusing a lot of video content in later chapters with only a few seconds of new stuff spliced in
- in general the game doesn't have enough original video, lots of stuff, especially the locked nodes, is just stock footage of space stuff (interesting, but doesn't move the story forward)
- the mystery never really gets resolved, you are basically as clueless at the end as you where at the start, all you really learn is character backstory
- keeping track of replies to you comments is cumbersome
- the game wants you to not spoil later chapters, but since the story unfolds in reverse chronology that means you can't actually discuss earlier chapters properly once you figured out how they fit into the larger picture
- the loading screens contain hints and story pieces, but disappear so quickly that you can't read them
- map navigation from close up view doesn't really work, as the view is obscured all the time
- the game doesn't have an end, would have been nice if the last node opened up access to a forum to discuss final ideas so that info wouldn't be scattered around all the nodes and disappear with time

~ game wants quicktime, haven't seen a game request that since Myst and Co. some 20 years ago :-)

Overall I enjoyed this quite a good bit. The complete lack of resolution is disappointing, but the way the backstory is uncovered bit by bit works quite well. Having unlocks be tide to likes is a bit annoying, as there is often nothing meaningful to add to the discussion, so one is forced to make pseudo comments. People also don't upvote a lot, so unlocking takes quite a while (i.e. days). I did work around that by upvoting myself with a secondary account (which you can create with a single copy of the game). It wasn't strictly necessary, as replies and likes did come in a few days later, but it did speed things up considerably. The lack of actual puzzles is probably the biggest problem with the game, as that means none of your investigations ever leads to something tangible. Anyway, while not perfect, it was a fun ride and I'd like to see more of it.
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3 of 5 people (60%) found this review helpful
17.5 hrs on record
Posted: February 6
Well, it is a hard game to review.

While it technically is a game, it's more of a discussion between players, while watching videos, reading documents or theorizing about what happened.

I would not really call it an investigation game, since so far, there seems to be no clear cut as to what happened.

The game is based around discussing the pieces (videos, documents, e-mails, screenshots etc) that are present.

I guess the game could be considered as an ARG. As such, it is not a game for everybody. Not everyone will like it.

It is slow (as in pace wise), or fast if you wish it to be. It depends on how long you spend on each items, and how involved you decide to go on some discussions (you can technically ignore/not discuss a lot of nodes).

There's no QTE, there's no combat, only interactions thru discussion with other players.

It is a great game if you do not wish to get stressed, and simply want to watch or read things, while chatting with other players. It is to be noted, that unless you manually add players on steam, you'll not have any way to know if someone is online in the game, or have a live chat with any of them, which is in my opinion, the only downside of an investigation game :).
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4 of 7 people (57%) found this review helpful
11.0 hrs on record
Posted: February 20
Cloud Chamber is a social platform based around complex scientific subjects. Notice, this is NOT a game in terms of gameplay. It is a place to view content and discuss it. Problems arise as the interface impedes everything, and there is low incentive to put effort into research. There are no puzzles to solve or interactive gameplay elements, and there is no real conclusion. I can appreciate the effort, but it's 20USD for some videos smothered with distortion effects.

I followed Cloud Chamber prior to release, interested but never enough to buy early. The devs never gave a clear picture on the content. I ended up getting a copy from the 2014 Gem Auction. I'm not too disappointed in getting the game for a minimal cost, but in retrospect I would've preferred having the gems.

Cloud Chamber starts out of the gate stumbling hard. Quicktime AND a registered account are required to play. Everything is dependent on the servers, and the forums load slower than the videos. This also depends on the devs gaining enough money to keep the servers alive, and will undoubtably slow down the rate of updates due to costs.

The default account settings spam your email for every like and comment connecting to you. Fortunately the community is not heavily populated, but you will change the email settings very quickly in annoyance. The UI is slow and poorly designed, making it more difficult to see comments on your posts and see what you have missed. Navigating between content nodes can look cool in the videos, but quickly gets old when you want to compare information between nodes. I would've preferred access to simple folders and organization options.

I was hoping for a cool ARG with puzzles and community tasks, but everything here is posting theories (The Signal caused everything ever) or complicated research that may be red herrings. I sense the plot was left loose intentionally, random elements thrown in to bolster the mystery with no intent on a conclusion. Similar to the content navigation, the story is a bunch of tangled strings with no solution. I understand this production is expensive, but I haven't seen any opportunity for new content on the conclusion. It's interesting, but not worth admission price for the ending. Good luck on the next endeavor.
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5 of 9 people (56%) found this review helpful
5.7 hrs on record
Posted: December 18, 2014
A very interesting story, takes a few days, but you can 100% it, as long as you actually use your brain and try to figure out what is going on
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5 of 9 people (56%) found this review helpful
29.9 hrs on record
Posted: January 7
This game is unique.
It's a mix of play detective with a touch of facebook posting. You get to advance if your contributions towards the investigation are valuable for the commuity. I loved the journey. Throughiut the game I saw fellow investigators make such interesting remarks, gamers that player this game were truly sucked in by its universe.

The presentation of the game is gorgeous. The music is also excellent.

If you are into narrative games and you are looking for something new, this is it.
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5 of 9 people (56%) found this review helpful
0.2 hrs on record
Posted: January 27
I bought this because I had a 50% off cupon and the name sounded interesting.

My god, do I regret that. It's apparently supposed to be a mystery/puzzle game crossed with social media, where you work together with other people as clueless as you are about everything, or worse, people that are farther along and drop spoilers (though they do kill those posts fast).

I can only recommend this game if you enjoy beating your head against a metaphorical brick wall.
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