Danger from the Deep
Danger from the Deep, often abbreviated as DftD, is an open-source World War II German U-boat simulation for PC, striving for technical and historical accuracy.
Also recorded as DftD
Danger from the Deep

One of the developers of Danger from the Deep · Directly from the developers · CC BY-SA 3.0
- Date
- 2003
- Language
- German
- Genre
- simulation video game
VALÉORINE Encyclopedia
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Documentary summary
Danger from the Deep, often abbreviated as DftD, is an open-source World War II German U-boat simulation for PC, striving for technical and historical accuracy.
Admitted source layer · organised and presented by VALÉORINE
Note VALÉORINE
The genre of Danger from the Deep is simulation video game. The language is German. Founded in 2003.
Composed from admitted, traceable facts · 01 October 2026
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Documentary evidence
Documentary basis
Authority files
wikidata · Q1159590 · wikipedia · Danger from the Deep
In this article
Key facts
Key facts
• Title — Danger from the Deep • Release — 2003 • Genre — Submarine simulator • Modes — Single-player, IPv6 and IPv4 Multiplayer planned • Platforms — Linux, FreeBSD, OpenBSD, and Microsoft Windows • Illustration — Screenshot
Development
Development
The project was registered in 2003 on sourceforge.net and is since then developed as open source software under the GPLv2. In 2004 it reached beta status. The game targets Multi-platform, supporting FreeBSD, OpenBSD, Mac OS X, Linux distributions, and Microsoft Windows by utilizing SDL and OpenGL. Hardware addressed is OpenGL 1.5 (while recommending "OpenGL 2.0 or greater") with around 256 MB of RAM, 1 GHz processor and common PC input devices (keyboard, mouse). Development is intermittent. As of June 11 2020 the latest commit to the Git repo was May 10, 2020. The last downloadable release was May 8, 2010
Identity
Identity
Danger from the Deep is recorded from 2003.
History of the object
Dated record
History of the object
Explore 2003–2009
The full dated record · 5 entries
2003
Danger from the Deep created.
2003
Danger from the Deep is recorded from 2003.
2007
Danger from the Deep published.
2007
Danger from the Deep is recorded as published in 2007.
2009
Danger from the Deep DC Super Friends Paperback (2009) is digitised and catalogued by Open Library.
Primary material
Digitised editions and texts
Danger from the Deep (2013) — Open Library
Danger from the Deep DC Super Friends Paperback (2009) — Open Library
Reception
A Linux Journal review from 2010 received DftD quite positive. In 2004 The Wargamer recommended the game to "serious sim gamers" which should "head over to Danger from the Deep's official web site and take a look.". In 2011 an Ars Technica article on the history of simulation games noted Danger from the Deep as: "These days, submarine sims [...] are kept alive by the open-source Danger from the Deep". The game was downloaded between 2003 and April 2017 1.3 million times alone from SourceForge, chip.de counted another 100,000 downloads.
Literature
Scholarly footprint
A count of publications is evidence of attention, not of standing, and is given here only as a measure.
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Knight, John. Danger from the Deep. Linux Journal. 20 May 2010.
- 2.CVS log for ports/Games/Dangerdeep/Makefile.
- 3.Danger From The Deep Comes To OS X by Cord Kruse on insidemacgames.com (April 20, 2007)
- 4.Downloads – Danger from the Deep. 30 October 2009.
- 5.Danger from the Deep Git repo. SourceForge. 2020-06-10.
- 6.Latest file releases. SourceForge. 2010-05-08.
- 7.Behind the Lines #24 by Scott Parrino on The Wargamer (04 Dec 2004)
- 8.From Elite to Rollercoaster Tycoon: 20 years of sim games, part 2 - In part two of our epic history of video game sims, we abandon virtual by Richard Moss on Ars Technica (2011-06-22)
- 9.2000-04-11+to+2017-04-17 downloads on sourceforge.net
- 10.Danger-from-the-Deep on chip.de (May 2017)
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
reference work
Secondary witnessreference work
Secondary witness
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
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