Free simulation software for linux

Oregano project is an application for schematic capture and simulation of electrical circuits. The actual simulation is performed by Berkeley Spice, or GNUcap or the new generation ngspice.

Oregano is licensed under the terms of the GNU GPL included in the file COPYING.

Created by accident, all who find you would destroy you. Can you escape?
Endgame: Singularity project is a simulation of a true AI. Go from computer to computer, pursued by the entire world. Keep hidden, and you might have a chance.
Originally created for the Pyweek compo, this version features many bugfixes and enhancements over the compo version. Thanks to Phil Bordelon for many of these fixes.
Enhancements:
- Very Easy mode is actually playable.

Adun project is an extensible biomolecular simulation program that includes data management and analysis capabilities.

Adun provides advanced algorithms and protocols for molecular simulation which can be accessed from an intuitive user interface but also from a more flexible programmatic level. It is built on the Adun framework which is a powerful library for creating and manipulating simulations.

However it goes beyond just performing simulations by incorporating tools for analysis and management of simulation data aswell as providing mechanisms that allow the easy extension of its abilities. In many senses Adun is simply a structure that can incorporate any molecular simulation tools allowing it almost unlimited potential for growth.

Adun is a new extendible molecular simulation program that also includes data management and analysis capabilities. What follows is an overview of our main aims for the 1.0 version of our software. The current stable version is 0.6. The 1.0 target release date is early next year.

Rail World project is a 2-D train simulation game.
Rail World is a railroad train simulation game designed to bring the features of model railroading to the desktop using actual aerial or satellite photographs as the backdrop for maps.
You can control multiple trains, switches, load/unload cargo, and more.
Main features:
- Use actual aerial photographs or satellite images as the basis for maps.
- Manage multiple trains as a conductor.
- Drive trains using throttle and brake as an engineer.
- Grapple with realistic physics, including stopping distance and collisions.
- Set switches and specific train routing.
- Load and unload cargo.

Danger from the deep (aka dangerdeep) is a Free / Open Source World War II german submarine simulation.
It is currently available for Linux/i386 and Windows, but since it uses SDL/OpenGL it should be portable to other operating systems or platforms. (If anyone whishes to port it, please contact us.)
This game is planned as tactical simulation and will be as realistic as our time and knowledge of physics allows. Its current state is ALPHA, but it is playable.
If anyone wants to contribute in development, youre welcome, just email the dangerdeep-devel mailing list. Contributing binary packages for various Linux distributions would also be much appreciated.
To get help with the game you should visit our public forum.
The game has support for multiple languages but currently only English, Italian and German are implemented. It is written in C++ with the use of the STL.
Danger from the Deep is released under the GNU General Public License. The project is hosted on SourceForge, a great supporter of the Open Source community.
Main features:
- simple main menu
- user interface (some items missing)
- basic world simulation, night and day
- realistic water and cloud simulation
- one type of destroyer, one battleship, one aircraft carrier, three subs, eight civilian ship types
- steering, firing, diving, periscope use
- free look engine for testing, periscope, UZO (aiming binoculars), bridge view
- console for logging purposes
- basic physics (acceleration, steering, firing)
- basic destroyer AI (follow, throw depth charges)
- simple vehicle preview
- mission parsing via text files, you can create your own custom missions
- tonnage recording
- log book

Qucs project is going to be an integrated circuit simulator which means you will be able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit. After that simulation has finished you can present the simulation results on a presentation page or window.
- Qucs, briefly for Qt Universal Circuit Simulator, is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, harmonic balance analysis, noise analysis, etc.
- Qucsator, the simulation backend, is a command line circuit simulator. It takes a network list in a certain format as input and outputs a Qucs dataset. It has been programmed for usage in the Qucs project but may also be used by other applications.
For people who are familiar with such simulators they should remember ADS from Agilent Technologies, Microwave Office from AWR and all the other simulators.
Enhancements:
- This release comes with a translation into Ukrainian, a selectable preprocessor in the SPICE component, and two new components (exponential voltage and current source).
- Libraries can now contain analogue as well as digital subcircuits.
- Analogue modelling is substantially strengthened by symbolically defined devices.
- The list of available functions in the equation solver has been extended to support more functions, logical and rational operators, and the ternary ?: construct.
- Pure digital simulations can be also performed by Verilog-HDL as an alternative to VHDL.