Danger from the Deep is an open-source World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 German U-boat simulation

Submarine simulator

A submarine simulator, or subsim for short, is usually a computer game in which the player commands a submarine. The usual form of the game is to go on a series of missions, each of which features a number of encounters where the goal is to sink surface ships and to survive counterattacks by...

and is abbreviated as DftD , striving for technical and historical accuracy.

Requirements

To play Dangerdeep you will need to be running a supported Operating System, you will also need:

* A OpenGL 1.5 Compliant graphics card (OpenGL 2.0 or greater is recommended)
* A fairly fast CPU, anything from 1.0ghz to 1.5ghz or greater should work
* 256mb RAM (512mb or more would be much better)
* The usual suspects; Keyboard, monitor, mouse and some speakers or headphones