Let me get this right out of the way: Star Control: Origins has no planets in it with free-standing water. We've taken the very convenient (for us) position that free standing water is extremely rare and that instead,, water tends to be trapped under layers of ice.
But according to a ScienceDaily article I read last week, water worlds might actually be pretty common.
Now for you gamers out there, how would you like to see water worlds handled in Star Control in the future? For example, would you fly over them? Would your lander act as a submarine? Or something else entirely?