Blue Rose is a fantasy tabletop role-playing game published by Green Ronin in 2004. Its innovative mechanics, based on a revised version of the d20 System, formed the basis of Green Ronin's generic True20 system.Blue Rose aims to emulate the genre of fiction the game's writers describe as "romantic fantasy" — that is, Feminist Fantasy of the sort published by authors like Mercedes Lackey, Tamora Pierce and Diane Duane. The setting is the world of Aldea, which superficially resembles a Medieval European Fantasy setting but is actually post-apocalyptic, the world having been devastated by wars between rival sorcerer-kings a few centuries back. Player characters are usually agents of Queen Jaellin of The Kingdom of Aldis, defending queen and country against threats both internal and external.
This game provides examples of:
After the End: Aldea only looks like a medieval fantasy world; it's actually very much post-apocalyptic.
Aristocrats Are Evil: Generally averted in Aldis — because despite government officials being called nobles, it's actually a meritocracy, not a hereditary aristocracy.
The Corruption: An actual game mechanic — embracing Corruption gets you phenomenally increased magical abilities, at the low, low cost of turning you evil.
Crystal Dragon Jesus: The Church of Pure Light basically combines the worst features of the medieval Catholic Church, Protestant Puritanism, and just a hint of fundamentalist Wahhabi Islam and theocratic Tibetan Buddhism.
The restrictions on sorcery have been relaxed in Aldis under the current monarch. (Specifically, you still can't PRACTICE sorcery, but it's no longer illegal to study the theories behind sorcery.) The ramifications are yet to be felt.
Dark Is Not Evil: Vata'sha and Night People are dark-skinned results of Sorcerer King experiments, but they're no more or less evil than humans. (Most shadowspawn, however, really are naturally evil.)
Exotic Extended Marriage: The game has "star marriages", where all the participants are considered to be the spouses of all the other participants, even if they are not sexually involved with each other. They are quite common in the islands, uncommon in Aldis and almost unheard of elsewhere.
Fighter, Mage, Thief: The system divides characters into Warriors, Adepts, and Experts (although cross-classing is easy and encouraged).
Fish People: Or maybe more Our Mermaids Are Different, since the Sea Folk are much less repulsive than your average Fish Person. They've got legs, but they have webbed hands and feet, blue-green skin, and can drink saltwater and hold their breath for an hour or more. They can also live on land (though they need more water than humans, so they're usually found on the coasts) and interbreed with humans. They're a playable race.
The Four Gods: There's four original creators, the Primordials. They don't exactly correspond to the Chinese Four Gods but they're similar in some respects, for instance each being associated with one of the seasons.
Functional Magic: Mostly of the Inherent Gift type; ritual-based Rule Magic exists but is usually (though not always) evil.
Gay Aesop: The sourcebooks make it quite clear that Aldis' acceptance of love between any two (or more) consenting adults is to be considered a Good Thing in the game's Black and White Morality.
Green Aesop: Respect for nature is similarly a Good Thing.
Happy Fun Ball: There are random gewgaws from the Old Kingdom scattered around Aldis, just waiting to be snatched up by a curious city child or innocent farm girl. Some of them are in fact items of arcane power. Occasionally they'll be perfectly safe, even extremely helpful. Other times...
Medieval Stasis: Strongly averted. It's got the trappings of a medieval world, but Aldis actually has mundane technology at around the level of The Cavalier Years, and if you count magic and magical artifacts, in some ways it's as advanced as the modern world. Politically, the government is closer to a constitutional monarchy than a medieval one.
Mind Over Manners: Psychic ethics are a big deal in Aldis, where about one in ten people have some kind of psychic power. Reading emotions is okay, reading thoughts is very much not.
No Transhumanism Allowed: Flesh-Shaping, which the Sorcerer-Kings used for genetic engineering is sorcery. The book mentions that it can be used for good purposes, but it's still inherently a sin against nature and causes The Corruption in its users.
No Woman's Land: Jarzon subscribes to a fairly misogynistic religion. Women are encouraged to stay barefoot and pregnant and are barred from most high-status careers, especially the priesthood.
Only the Pure of Heart: Only the pure of heart get to be nobles in Aldis (and there's a magical artifact that makes sure...though nothing stops them from turning evil after they've passed the test).
Our Demons Are Different: They're called "darkfiends", but otherwise they fit the Judeo-Christian ideal of utterly evil creatures with a variety of callings (the book explicitly says that a darkfiend turning good is a world-shaking event).
The closest thing to elves as a playable race are the vata'an, which are really more like half-elves — humans with vatazin ancestry; it crops up unpredictably as a recessive trait. They have white hair, and there's no mention of pointy ears.
There's also the vata'sha, which are more like half-Drow or Night Elves, having been the result of genetic experiments to create nocturnal vata'an. They're less accepted than their diurnal cousins.
Sapient Steed: Rhy-horses, and less commonly, unicorns and gryphons.
Serious Business: Just about everything, for the Trebutane. A sample adventure has the player character encountering two Trebutane men who are on the verge of a knife fight over whether wearing the colour red is respectful to their martyrs, and therefore mandatory, or disrespectful to their martyrs, and therefore forbidden.
Shipper on Deck: In Aldea, it's expected that everyone will eventually marry someone (or someones, as the case may be), so when two people meet up and seem like they like each other, everyone around them starts matchmaking.
Shoulder-Sized Dragon: Drakes or "pocket dragons," about a foot in length, one of the less common species of rhydan.
Well-Intentioned Extremist: Jarzon as a whole. It's a far harsher land than Aldis, and the Church of the Pure Light was originally an underground religion of resistance that formed around the sacred hearth-fires. Now, however, the Church's suspicion of sorcery has extended to all arcana not practiced by their clergy (though healers get a pass), and the importance of the hearth-fire (which symbolizes family and heterosexual love) has led to a rather ugly prejudice against homosexuality.
What Measure Is a Mook?: The game encourages you to avert this trope with a lot of the various antagonists. Darkfiends and most Shadowspawn are fair game for swording first and asking questions later but other kinds of enemies are often merely tragically misguided, victims of circumstance, or Punch Clock Villains and really don't deserve to die for their mistakes.
The Woman Wearing the Queenly Mask: Queen Jaellin is actually rather shy and bookish, but she's determined to be a good queen, and if that means spending her time at boring political and social functions, so be it.