Darkstar One is easily the best space-sim since Freelancer. The difference here is players control the same ship throughout the game, instead of trading/buying new ones as credits are accumulated. This gives it more of an action-rpg feel than many open ended space-sims have, as you collect artifacts to upgrade and customize ship attributes. If you've played any Elite style space-sim you know what to expect here, lots of pirates, trading, bounty hunting, and some story missions thrown in too. Overall this is an excellent title and one of the best available on GOG.