What are some alternatives?
When comparing Galaxy on Fire and Kerbal Space Program, you can also consider the following products
EVE Online - Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.
OGame - OGame is an addictive, Massively Multiplayer Online, Real-time Strategy, Space-war, and Money Management Browser-based video game develop by Gameforge AG.
Universe Sandbox - Universe Sandbox ² is a physics-based space simulator.
Vendetta Online - The space-based MMO Vendetta Online balances an online trading system with tense ship-to=ship combat.
Star Citizen - 1, 966, 341. Active citizen. Help us make Star Citizen a reality! Become a backer of the next-generation of Space-man. Reserve your ship.
Evochron Mercenary - Official Webpage for Evochron Mercenary, a 3D space combat and trader simulation. Screenshots, free demo, forum, cheats, videos, and more.