Vega Strike is a first-person space trading and combat simulator, developed for Microsoft Windows, Linux, FreeBSD and OS X systems. Many of the core game mechanics of Vega Strike are indirectly inspired by Elite. Other games, such as Wing Commander: Privateer, influenced the original developer. Development Vega Strike is programmed in C/C++ over the OpenGL 3D graphics API and performs internal scripting written in Python and XML. Released under the GNU General Public License, Vega Strike is free and open source software. An unofficial remake of Wing Commander: Privateer entitled Wing Commander: Privateer - Gemini Gold was made using the Vega Strike engine. Gameplay Vega Strike aims to insert players into a large, dynamic universe with diverse factions of varying disposition to the player and to each other, and an economy model where trade, combat and exploration are all profitable. Financial gains allow players to buy upgrades and/or better vehicles, enabling them to advance into more dangerous and profitable missions. The player can have varying levels of relations with factions. Negative relations can form if the player kills some of a given faction's ships. Positive relations can be formed if the player destroys ships that are part of an enemy to a given faction. Players can either buy and sell cargo, or accept missions from the Mission Computer, as well as talking to people in the local bar at the space station/planet. In the tradition of some precursor games, individuals of significant plot importance are often found in bars. The existence of a universal currency, open markets, trading items of value to all or most groups, and widespread technologies allows the player to do business practically everywhere and buy from anyone. There is also a campaign in the game which assigns certain missions for the player, following various paths within a story-graph. The player can continue playing the game after the campaign is finished. Transportation To travel quickly to and from different planets/space stations in the same system, the SPEC system is used. It multiplies the engine speed of the player's spacecraft, causing the ship to reach high speeds, allowing the player to quickly travel to different locations in a solar system. However, the number of times it multiplies the engine speed is limited by gravity: The closer the player's ship is to a planet/space station, the less the speed is multiplied. After the player waits, and gets farther away