Project New Horizons is a video game concept I'm currently developing. It's a grand strategy game about space exploration in the next few centuries.
Aspects:
significant society builder element with high customization
set within a single, procedurally generated solar system
only realistic technology; no warp drives!
realistic timescales: travel times of months to years
build space stations, surface settlements, asteroid mining projects
material resources: water, food, power, oxygen, fuels (hydrocarbon, radioactive, noble gas), common metals, rare metals
intangible values: education, entertainment, inspiration, loyalty
different starting conditions?: united world, gov't program, private corporation
different government styles?: communist, liberal, fascist (gross!), etc
MINIMAL combat; situations resolved diplomatically, economically, culturally
policies such as pop movement: free, restricted, forced
events: asteroid impact, pandemic, revolt/independence movement