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Star Ruler is a large scale, real-time grand strategy set in space.

Design, build, and take control of potentially thousands of ships, and expand the reach of your empire across the entire galaxy.

Research new technologies, capture enemy vessels, and conquer enemy planets on your path to galactic domination.

Chat with other players at any time to discuss strategies or arrange multiplayer games.

And if that isn't enough, you can modify the game in nearly any way you see fit, or download mods made by others.

ORION: Prelude (previously sold as ORION: Dino Beatdown and ORION: Dino Horde) is an Open World, Class-Based Cooperative Survival Sci-Fi FPS. The game puts five (5) players together in huge, endless environments in which they must work together to accomplish objectives and survive the devastating Dinosaur horde.

Players earn in-game credits which can be used to upgrade their abilities, purchase new weapons, unlock weapon upgrades and call in vehicles in order to ensure survival.

Hydrophobia is a survival-adventure video game developed and published by Dark Energy Digital for Microsoft Windows, the PlayStation 3 and by Microsoft Studios for Xbox Live Arcade.

The game's engine, HydroEngine, provides realistic fluid dynamics technology for flowing water, allowing it to interact with the surroundings. The levels in the game were designed using InfiniteWorlds; a game creation system which uses bespoke procedural technology to significantly reduce file sizes, decreasing the overall file size of the game.

Vessel is a physics-based, steampunk puzzle-platform video game available for Microsoft Windows. It is the first title developed by Strange Loop Games, a Seattle based video game developer that creates games which use today's modern hardware for gameplay mechanics, rather than graphics improvements. Vessel uses a custom built engine that specializes in physics and fluid simulation.

Originally an iOS app, this lightweight tower defense game features 5 types of towers versus 7 enemy vehicle classes, battling it out throughout a 24-level campaign and two difficulty modes.
A demo is available on Desura, and the game has appeared on Steam Greenlight.

X-Plane 10 Global is the world’s most comprehensive and powerful flight simulator for personal computers, and it offers the most realistic flight model available.

X-Plane is not a game, but an engineering tool that can be used to predict the flying qualities of fixed- and rotary-wing aircraft with incredible accuracy.

High in Earth’s stratosphere, you’ll thread a path through the rotating blades of enormous wind turbines. Elsewhere in the solar system, you’ll dodge asteroids above seas of lava, spray graffiti onto lunar government offices, and flip off Ganymede colonists, all in the name of peaceful protest.

Jump off of buildings
Create your own stunts
Impress the crowd by kissing skyscrapers
Flip people off for points

Ys: The Oath in Felghana is a Japanese Action RPG by Nihon Falcom. It is a remake of the third game in the Ys series, Ys III: Wanderers from Ys.

This game, like all Ys games, has a strong focus on story-telling, much like the Final Fantasy series (for those who are not familiar with the Ys series).

XCOM: Enemy Unknown is a remake of the 1994 classic strategy game UFO: Enemy Unknown, also known as X-COM: UFO Defense. Unlike the previously announced XCOM by 2K Marin, this game will return to the strategic root of the X-COM series.

Atom Zombie Smasher is a real-time strategy game developed by independent developer Blendo Games. In this game, the player attempts to rescue as many citizens as possible from an oncoming zombie horde using helicopter rescue units. As the player progresses, various weapon teams are unlocked that can be deployed to slow the zombie forces while the citizens are rescued.

This game is surprisingly fun and addictive.