Zero-G MMO

A persistent browser-based MMO set in a 1:1-scale solar system based on real MOLA/LOLA altimetry data from NASA and featuring realistic orbital physics. Explore the planets, build in real-time instances that put your skills to the test, mine asteroids, refine and craft items using an economy based on the periodic table, trade on a player-driven marketplace, and battle aliens in a fully cooperative universe where nothing ever resets. Free to play, no download required—runs in any browser, including on mobile devices.