In Blood Legacy of Mars the background reads like a Roman/Borgias/Hamlet paranoid love, daggers and intrigue story. This is a very plot dense adventure. The "relationship diagram" towards the back of the adventure is truly a masterpiece of interconnected PC motivation and all that intrigue and double-crossing stuff (which makes my brain hurt - but in a good way) The main NPCs are fully fleshed out. The line-art in this adventure is absolutely superb.
Definitely an adventure for the readers, talkers and thinkers, spiced up with sexual intrigue and disputes resolved in drunken viscous brawls. Tell the players to keep notes on everyone they meet! Suggested additional rules are the main MARS rulebook for the descriptions of Minor NPCs. Also, if you're enjoying the setting and need equipment resources etc, it's probably near-compulsory to buy the MARS rulebook as well.
[4 of 5 Stars!]