Danger from the Deep

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).

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".