Star Traders: Frontiers
My God, it's full of stats
Star Traders: Frontiers is a big emergent space-captainy sim that lets you do all the stuff these games always promise but seldom deliver.
Space Tradey games are usually 70% combat, 20% trading and 10% everything else — things like diplomacy and spying are usually limited to scripted narrative encounters. In Star Traders: Frontiers everything has its own dedicated system — diplomacy, spying, exploration, bounty hunting, piracy and so on are all viable ways to play the game in any blending or combination you like.
The game is absolutely committed to letting you do whatever you want to do and making it engaging.