Simiulation

Allegiance - Download - [47.11 MB] - Home Page - Pics - [Difficulty = Moderate] - [RR] - [MP]
"Allegiance is a Freeware team-oriented online multiplayer space combat simulation with real-time strategy (RTS) elements. It could be described as a much-improved "X-Wing vs. Tie-Fighter." Whereas most multiplayer online games have a very simplistic concept of teamwork, if any, Allegiance distinguishes itself by having a strategy interface that demands teamwork in order to accomplish anything. Despite all these advancements, Allegiance still works great on a Pentium 2 computer with a 56k modem."

Babylon 5: I've Found Her - Download - [220 MB] - Home Page - Pics - [Difficulty = Moderate]
"Babylon 5: I've Found Her (IFH) is a Freeware space combat simulator game project developed by Space Dream Factory (SDF) and set in the universe of Babylon 5. Fans of the TV show will love this."

Battlecruiser Millennium - Download - [229 MB] - Home Page - Pics - [Difficulty = Advanced]
"Battlecruiser Millennium is a Freeware update to the original Battlecruiser 3000AD with new graphics and multiplayer engines. Including A wealth of new options and player controlled vehicles. Battlecruiser is a very complex space combat simulator that focuses on freedom of movement, realism and space combat on a truly galactic scale."

Danger From the Deep - Download - [13.5 MB] - Home Page - Pics - [Difficulty = Advanced]
"Danger From the Deep is a Freeware World War II German submarine simulation. This game is planned as a tactical simulation and will be as realistic as our time and knowledge of physics allows."

Dope City - Download - [8.36 MB] - Home Page - Pics - [Difficulty = Moderate] - [AO]
"Dope City is a Freeware trade game with a few twists, Dope City is all about the money. You're the new drug baron in town, and it's time to make some serious cash, as fast as possible. The object of the game is to hire pushers, and use these to scout deals, sell dope and generally raise as much cash as possible, within the given time limit. Once time is up, it's time to see how you did at being a dope kingpin. Have you got what it takes?"

Flight Commander - Download - [41.5 MB] - Home Page - Pics - [Difficulty = Moderate]
"Flight Commander is a Freeware space combat simulator in the style of Wing Commander.

FlightGear - Download - [69 MB] - Home Page - Pics - [Difficulty = Advanced]
"The FlightGear is a Freeware flight simulator project. The goal of the FlightGear project is to create a sophisticated flight simulator framework for use in research or academic environments, for the development and pursuit of other interesting flight simulation ideas, and as an end-user application. The idea for Flight Gear was born out of a dissatisfaction with current commercial PC flight simulators. A big problem with these simulators is their proprietary nature and lack of extensibility. There are so many people across the world with great ideas for enhancing the currently available simulators who have the ability to write code, and who have a desire to learn and contribute. Many people involved in education and research could use a spiffy flight simulator frame work on which to build their own projects; however, commercial simulators do not lend themselves to modification and enhancement. The Flight Gear project is striving to fill these gaps."

FMS Flying-Model-Simulator - Download - [5.9 MB] - Home Page - Pics - [Difficulty = Moderate]
"FMS is a Freeware 3D model flight simulator"

Future Pinball - Download - [15 MB] + Sci-Fi Classic - [15 MB] - Home Page - Pics - [Difficulty = Advanced]
"Future Pinball is a Freeware real time Pinball Development System. It allows you to design and play your very own pinball simulation in True real time 3D. It uses Advanced Physics to provide the best possible Simulation of a true to life pinball machine. Read the manual for the controls and how to play."

Hacker 3.1 - Download - [1.09 MB] - Pics - [Difficulty = Advanced]
"Hacker is a Freeware Hacking Simulation Game. As a hacker employed by an underground organization, you must use the command line and a number of tools (DNS, Nmap, Telnet ect...) to complete 12 missions."

LinCity-NG - Download - [38 MB] - Home Page - Pics - [Difficulty = Moderate]
"LinCity-NG is a Freeware City Simulation Game. It is a polished and improved version of the classic LinCity. In the game, you are required to build and maintain a city. You can win the game either by building a sustainable economy or by evacuating all citizens with spaceships."

Oolite - Download - [18.8 MB] - Home Page - Pics - [Difficulty = Moderate]
"Oolite is a Freeware space simulation game, inspired by the classic game Elite. It is designed as a small game that is easy for users to pick up, modify and expand upon. Almost every aspect of the game can be changed by using simple, free graphics packages and text-editors."

ORBITER - Download - [37.3 MB] - Home Page - Pics - [Difficulty = Advanced]
"ORBITER is a Freeware flight simulator that goes beyond the confines of Earth's atmosphere. Launch the Space Shuttle from Kennedy Space Center to deploy a satellite, rendezvous with the International Space Station or take the futuristic Delta-glider for a tour through the solar system - the choice is yours. But make no mistake - ORBITER is not a space shooter. The emphasis is firmly on realism, and the learning curve can be steep. Be prepared to invest some time and effort to brush up on your orbital mechanics background."

Simutrans 128 - Download - [13 MB] - Home Page - Pics - [Difficulty = Moderate]
"Simutrans 128 is a Freeware transport and economic simulation game similar to Transport Tycoon."

Transcendence - Download - [8.15 MB] - Home Page - Pics - [Difficulty = Moderate]
"Transcendence is a Freeware game of space combat and adventure in which you travel throughout the star systems of Human Space and encounter pirates, outlaws, and slavers bent on taking your ship, your cargo, and your life."

Vega Strike - Download - [199 MB] - Home Page - Pics - [Difficulty = Advanced]
"Vega Strike is a Freeware 3D Space Simulator. It allows players to explore a vastly dynamic universe where frontiers collide and you're just a pilot trying to make ends meet. How? That's your decision. Vega Strike is designed as a non-linear gaming experience, where you choose what action you want to take. Features include split-screen play, trading, exploration and of course plenty of shoot 'em up action."

Virtual-U - Download - [17.3 MB] - Home Page - Pics - [Difficulty = Advanced]
"Virtual-U is a Freeware simulation game about running a university or college. It is a powerful, convenient, and user-friendly software tool that models the attitudes and behaviors of an academic community. Players act as president of a university or college and struggle to manage the institution's affairs. The president sets, monitors, and modifies a variety of institutional parameters and policies. Players determine tuition cost and allocate resources."

Wing Commander Privateer Remake and Gemini Gold - Comparison
"These both are Freeware WC Privateer remakes, patterned after the original, and built using the open source Vega Strike engine."

WC Privateer Remake - Download - [189 MB] - Home Page - Pics - [Difficulty = Advanced]
"Remake is patterned after the original Privateer with some fan content added in such as autofiring turrets and an extra campaign."

WC Privateer Gemini Gold - Download - [190 MB] - Home Page - Pics - [Difficulty = Advanced]
"Gemini Gold is known as the "Purist Version". The goal is to bring the spirit of the original Privateer to modern computers without additional fan made content."