WikiTribune - Evidence based journalism, from the founder of Wikipedia
EVE Online - Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.
Neighborhoods.nyc - Hyper-local alerts targeted by NYC neighborhood
Elite Dangerous - Elite Dangerous is a 2015 Trading, Action, Sci-fi, Exploration, Open World and Space Simulation by Frontier Developments.
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Star Conflict - Star Conflict is a free MMO action game and space simulator that was introduced in 2012.