KSP is a game where the players create and manage their own space program. Build spacecraft, fly them, and try to help the Kerbals to fulfill their ultimate mission of conquering space. The game is currently under heavy development. This means the game will be improved on a regular basis, so be sure to check back for new updates. Right now, KSP is in Sandbox Complete state, but we want you to try it out and have fun with it. The first versions are free to download and play, and will remain so forever. Official Site: https://kerbalspaceprogram.com/ Download Free: http://kerbalspaceprogram.mediafire.com/file/nfptdtbj1zwcyi7/KSP_demo_win.zip
A Slower Speed of Light is a first-person game prototype in which players navigate a 3D space while picking up orbs that reduce the speed of light in increments. Custom-built, open-source relativistic graphics code allows the speed of light in the game to approach the player's own maximum walking speed. Visual effects of special relativity gradually become apparent to the player, increasing the challenge of gameplay. These effects, rendered in realtime to vertex accuracy, include the Doppler effect (red- and blue-shifting of visible light, and the shifting of infrared and ultraviolet light into the visible spectrum); the searchlight effect (increased brightness in the direction of travel); time dilation (differences in the perceived passage of time from the player and the outside world); Lorentz transformation (warping of space at near-light speeds); and the runtime effect (the ability to see objects as they were in the past, due to the travel time of light). Players can choose to share their mastery and experience of the game through Twitter. A Slower Speed of Light combines accessible gameplay and a fantasy setting with theoretical and computational physics research to deliver an engaging and pedagogically rich experience. Download it for Windows or Mac: http://gamelab.mit.edu/games/a-slower-speed-of-light/
ArmageTron Advanced is a nice little clone of the original Tron Light Cycles arcade game from the 80's. It features 3d graphics, online multiplayer support and is available for Windows, Linux and Macintosh.
Epic Inventor is an awesome game that combines open world sandbox, RPG, sidescroller and RTS elements. It's basically Terraria / Minecraft meets tower defense. You build and craft whatever you can dream up and defend it. It's free and in its beta stage.
0 A.D. (pronounced "zero ey-dee") is a free, open-source, cross-platform real-time strategy (RTS) game of ancient warfare. In short, it is a historically-based war/economy game that allows players to relive or rewrite the history of Western civilizations, focusing on the years between 500 B.C. and 500 A.D. The project is highly ambitious, involving state-of-the-art 3D graphics, detailed artwork, sound, and a flexible and powerful custom-built game engine.
Free and Open Source Software • Cross-platform • Historically based • 6 unique civilizations • Provinces and territories • Realistic maps/terrain • Realistic naval warfare • Comprehensive editor • Several multiplayer modes
Super Puzzle Platformer is a retro/arcade/puzzle/action mashup. Match blocks by shooting them and survive as long as possible to get the highest score.
