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Survive in inhumane conditions and come back home with the whole crew.
Survive in inhumane conditions and come back home with the whole crew.
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1,511 backers pledged CA$ 38,188 to help bring this project to life.

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Posted by PlayWay (Creator)

Take a look at a interesting new game being made by MovieGames and supported by PlayWay.

You can also expect a beefy update from us soon regarding UBOAT. We've been working hard and made a big progress since the last one on a winding road towards the release :)

Thank you for your support!


Deep Water Studio


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    1. Mark

      @PlayWay, I didn't mean to imply this campaign is in trouble, but many others that I have backed that just disappeared. It is only going forward I am very hesitant to back any software, especially games, unless there is a cheap entry point (e.g., 5 bucks). This past one I had backed at around $150. I am sure this campaign will be great.

    2. PlayWay 20-time creator on

      At least 2 compensator models existed back then, so possibly that explains why the photo of the U 995 compensator doesn't match the description.

      I think that this site must be correct for that compensator model. We would have the base functionality covered fully here. We could choose the direction, range and cutoff frequency with these three dials.

    3. PlayWay 20-time creator on

      I think that they mean the frequency ranges here, so we are back to the previous theory ;)

      He calls them distances because low frequencies have a high range (but low "precision") while high frequencies have a short range (but high "precision").

      By precision I mean that the low frequencies are heard all around the place and it's hard to tell the exact direction of the source, while the high frequencies can be heard in a narrow range.

    4. Missing avatar

      NileX13 on

      This site looks interesting, its in spanish though:

      According to them, the left knob is for distance-selection, the right one is the so called "angle selector".

    5. PlayWay 20-time creator on

      It's weird though that there was a knob for this.. Couldn't the hydrophone operator just take one speaker away from the ear?

    6. PlayWay 20-time creator on

      I've found such mention in a paper about GHG:

      "According to F. Deters (June 1996), a former GHG operator, it was (also) possible to select manually which hydrophone group (starboard or port) was to be operated."

      It seems that the left knob has to do it. Where was the range selected then? There doesn't seem to be any more knobs on the compensator.

    7. Missing avatar

      NileX13 on

      But that would fit the description of the Wiki-article: One switch to choose the side (starboard / port, knob on the left), and thright knob for fine-tuning on the sound-source.

    8. Missing avatar

      NileX13 on

      There is just one thing, that doesnt fit :(: The description says, that the frequency-switch had 6 positions, labled I, II, III, IV, V and VI, which i cant see. The left knob has these typical starboard green and port red coloring, the one on the right has something like -45° to +45°. What do you think about this?

    9. PlayWay 20-time creator on

      We are sorry about the delays @Mark. I assure you though, that it's all good and we have a safe budget to finish this game.

    10. PlayWay 20-time creator on

      That seems to match my description, so we are good :) I can't express how I appreciate this, thanks!

      I believe that the device next to the compensator must be an amplifier to set the volume gain, as we've ran out of knobs on the compensator itself. It must be the device in the bottom left part of this photo:

    11. Mark

      I just don't have the stomach to back software these days, especially games, given recent track record (latest one was Project Resurgence). It seems the teams vastly underestimate the amount of resources that are needed to bring the title from Kickstarter idea to finished product. Been burned too many times.

    12. Missing avatar

      NileX13 on

      From the manual i could see that there were two switches/knobs to 1.) activate amplified filter-chains to surpress unwanted frequencys and 2.) the threshold-frequency could be changed in certain steps. (Found on last page)

    13. PlayWay 20-time creator on

      Thank you! That clears some things up :) Summing up, there are three frequency ranges:

      - 1 kHz center frequency, hpf cutoff range of 400 - 860 Hz
      - 3 kHz center frequency, hpf cutoff range of 800 - 1750 Hz
      - 6 kHz center frequency, hpf cutoff range of 1600 - 3500 Hz

      I guess that the operator had to use one of these two knobs on the bottom to switch between the ranges and the second to set the cutoff frequency in that range.

    14. Missing avatar

      NileX13 on

      For the compensator, the manual says that its use was to compensate timing-issues between the single sensors for sound-sources which are more then 100-300meters away. As far as i understand, the problem is that if you get a sound-signal on parallel-connected sensors which doesnt hit all sensors at the same time, the recieved signal is as small as if there was just one sensor (instead of 24). If the sound hits all sensors at onc, the signal strenght is the full strenght of all 24 sensors. So i guess, the compensator puts the signal in a "compensation-chain" which leads to all sensor signals are recieved at once (so, the best case described above), so we get the strongest signal possible thanks to the compensator.

      Hope that helps anyhow! :)

    15. Missing avatar

      NileX13 on

      Ok, so from the manual i see that the compensator was used to equalize timing-issues with the GHG.

      What is shown in the picture sound like this:
      From Wikipedia:
      "Das Gruppenhorchgerät, Kurzform „GHG“, bestand aus zwei Gruppen zu 24 Sensoren (eine Gruppe auf jeder Schiffsseite). Jeder Sensor hatte einen einstufigen Röhrenvorverstärker. Diese 48 NF-Signale wurden dann auf eine Schaltmatrix im Hauptgerät geleitet. Der Sonargast konnte daran die Schiffsseite sowie die genaue Richtung der Schallquelle einstellen. Zur Verbesserung der Auflösung gab es drei umschaltbare Frequenzweichen mit 1, 3 und 6 kHz Mittenfrequenz. Durch die seitliche Anbringung gab es einen toten Bereich von jeweils 40° zum Bug und nach Achtern."

      Rushed translation:
      The "Groups-Listening-Device" (Gruppenhorchgeraet) (GHG) consisted of 24 sensores (one group on both sides of the ship). Every sensor had a one-level tube amplifier. These 48 NF-Signales ( were then directed to one switching matrix (switching unit) in the main device. (Now the interesting part!) Because of this, the sonarman was able to tune in on the specific side the signal comes from as well as the exact direction of said signal. To get a better resolution, there were three switchable frequency ranges in the 1, 3 and 6 kHz centerfrequecy. Cause of the sidemount of the device there was a "deaf area" of 40 degree bow and stern.

      Pretty much describes the picture, but i could be horribly wrong.

    16. PlayWay 20-time creator on

      @Zac Campbell It's a good idea as he may know somebody who used this equipment. Thank you!

      @NileX13 It looks that it may be exactly what we are looking for. My German is too basic for this though.. I don't understand a thing ;)

    17. Missing avatar

      NileX13 on

      It is described in the manual, but its hard too translate! :D

    18. Missing avatar

      NileX13 on

      Still translating something, but first, i found this:

    19. Missing avatar

      Zac Campbell on

      @Deepwater @Playway I will begin looking into this when I get off work today I would like to know how the GHG actually worked myself. I have a neighbor who served in the US Silent Service during the 60's he did work with West Germany when they began redeveloping Uboats again and the rearmament of West Germany officially began I will ask him to see if perhaps he ever heard of Budesmarine sailors mention a GHG. Their has to be someone out in the world who knows how or worked on one before that is still around.

    20. PlayWay 20-time creator on

      @NileX13 We will, promise :)

      On a side note, we would appreciate some help in figuring out how the GHG compensator works, if somebody has the knowledge how this stuff works. The discussion thread is on…

    21. Missing avatar

      NileX13 on

      Give us moar UBOOT! :)

      Game looks nice though! ;)