Explore the solar system to collect science points and upgrade your ship. Complete missions to collect money you can use to build bases to help you reach the furthest reaches of the solar system. There are 20 unique locations to visit. Basically this game is like flying in Kerbal Space Program, but 2D and easier.
WASD or arrow keys control ship. Menus are controlled with the mouse. Drag up and down with right mouse button or use the mouse wheel to zoom in and out.
Space Game auto-saves resources, upgrades, and science (but not current location) to your browser's localstorage.