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You are Catherine Dubont. The Laser Drill opened a cavern 10 miles beyond the surface of the earth.

Sonar a stealth game where excellent hearing is your greatest asset.

DRM-Free only

This title is only sold as DRM-Free.

SONAR is a survival horror game with a focus on sound design rather than graphics.
It uses a minimalistic graphical style to create an alien world in which the player has to avoid several hazards.
Due to absolute darkness concealing the game's world, she is forced to use the SONAR-O-MATIC 3000.
With this scanning device the player is able to cross the bridge between auditive and visual sensory and to be able to orientate and survive.

While creating SONAR with literally no budget and no access to professional graphics artists, decision was made to focus on an elaborate sound design using the huge resources provided by

The premise therefore was to build everything around the idea that sound plays a bigger role in the game than visuals.

Going from there, a world had to be created where there were no visuals at all, which leads to the scenario of being stuck 10 miles beneath the surface of the earth.

Every single design element was deducted from this premise.

If there is no light, then any creature evolved in the depths of these deep caverns won't orientate by light but more plausibly by sound, just like the player does.

The gameplay genre therefore was fixed: stealth game based on sound recognition.

NERDY BIRDDeveloper's Voice

If you are having some troubles with this title, please do not hesitate to check out our Help pages or contact us about it! 

  • Windows

    • Operating SystemWindows XP/ Vista / 7
    • ProcessorSingle Core 3.0 Ghz
    • RAM1 GB
    • MemoryOver 60 MB



Nerdy Bird basically is a one man show consisting of developer, writer and artist Jens- Christian Seele. But as the development of the game went on, freelance sales manager Arne Scheunemann joined the team.