DEINSTE is a desert planet with an ecology that is driven by highly-localized random precipitation.  Every day, a different few acres of land receives a generous rainfall, which collects in depressions of the rocky soil to form a temporary oasis.  The fast-growing plant life native to Deinste immediately takes advantage of this moisture to germinate from dormant seeds, flower, and propagate.  All animal life must then chase after these oases in order to survive.  They are aided in this by avian creatures that are usually the first to spot the next downpour and fly towards it with shrieking cries.  The humans who live on Deinste live in mobile fortresses called "stades".  Bowl-shaped and the size of a small village, they move forward on motorized tracks.  If they are able to arrive at their destination before the rain stops, it will fill the bottom of the stade, so habitation begins at a higher level.  Deinsters are a throroughly caste-oriented society.  If your father was a front-track-maintenance-technician, that is your job as well.  Careful management of population growth is therefore essential, with discreet adoptions taking place when absolutely necessary.

LULLINGSTONE is a beautiful and temperate planet, a literal garden.  Some of its places are even more wondrous than the generally prevailing splendor -- towering waterfalls, fathomless crystal caves, and rainbow-hued canyons.  These have been walled off as the personal preserves of the planet's elite, whose sense of superiority is visibly expressed in their ridiculously large hairstyles.  One is not considered truly powerful unless one is practically incapacitated by an enormous pile of hair that one can scarcely lift.  The remainder of the population is content, though, to enjoy the rest of the planet, and let the 1% enjoy their superiority in their beautiful castles.

VENTURA is wracked by storms, which are thankfully (and curiously) confined to particular corridors that criss-cross the planet's surface.  Hence the storms effectively divide Ventura into regions that can never safely interact with one another.  The one thing that inhabitants of all the regions want is a very rare substance, Paraíbite, that unfortunately (and curiously) can only be found in the most stormy areas.  Paraíbite unlocks powerful mental abilities, which have naturally been weaponized by the Venturans in their never-ending wars between neighboring regions.  The rarity of actually seeing a foreign Venturan does not stop them from hating each other.

SUNDERLAND is a fully-urbanized planet that is dominated by competing corporations.  Through some fluke of societal development, what they mostly compete at is the invention of increasingly vulgar devices.  Life on Sunderland revolves around its frequent holidays and their "pranking ceremonies".  Status is earned by personally humiliating one's neighbors, using novel equipment that supersedes any previously seen.  The corporations cleverly target their advertisements so that everyone somehow manages to purchase such pranking kits.

TERRIS is so distant from its sun that its surface is almost entirely snow and ice.  Its hardy inhabitants are firm believers in democracy, but their politics are of a very agressive sort.  Every citizen has one vote, which must be cast according to the will of the last person to defeat that citizen in a government-scheduled martial arts tournament.  There is therefore a great deal of societal emphasis on learning how to fight.  Hardly anyone will publicly admit to having an interest in any science not directly related to their combative skills.  In secret, however, many people of Terris learn other ways to improve their world, and they teach these subjects to others in private.  It is considered impolite to wonder who provides the hydroponic gardens and fusion reactors necessary to support life on Terris.

FILÉ is an ocean planet, completely covered by water.  The gill-breathing Filéans constantly follow its currents in peace.  They are ostensibly ruled by a hereditary king, whose laws are absolutely obeyed by everyone on the entire planet.  The only laws which are seen as fit for the king to proclaim, however, are the laws of mathematics.  So no one may claim that 2 + 2 = 5, for example, but other than that everyone is free to do as they wish.  Mathemeticians on Filé keep busy in proving new laws for the king to enforce, but their society is otherwise decadent.  They have never heard of Kurt Friedrich Gödel.

FREMANTLE is inhabited by a collective society of humans called the Noongar, and also by a species of living cloud-creatures (Woylie) that have great influence on the meteorological properties of the planet.  The Noongar used artificially-intelligent satellites to communicate with the Woylie, which have very limited sentience but can be trained to affect the atmosphere in many ways.  Initially this led to great prosperity on Fremantle, with rains falling just where they were needed most.  But cosmic radiation eventually caused bit-rot in the software running on the satellites, and their programming went completely haywire.  Rains became torrential, leading to massive flooding.  Lightning and powerful cyclones also became extremely prevalent.  All of the large structures on Fremantle have now been destroyed, forcing the Noongar to collectively shelter in the ruins.

He donated an astonishing 128,000 zorkmids to friendly priests, and never attacked a peaceful creature.  (Strange how so many chose not to be peaceful!)
As for his other conduct...
After his cat Kit Fisto picked an ill-advised fight with a watch captain in Minetown, he only felt slightly guilty about occasionally eating food that would otherwise be wasted.  His pet killer bee named Baybee didn't survive the dungeon either.  And one is obligated to make use of a divinely-gifted sword, right?  There was dancing with demons, and nurses in a graveyard.  Experimenting with polymorph control turned him into a woman temporarily, which may have caused him to lose interest in dancing.  Mind flayers are annoying far beyond their ability to kill you.  One inflicted him with amnesia, so he had to genocide all similar-looking humanoids in reprisal.  And then once one has committed a genocide, why not a couple more?  Goodbye, liches and cockatrices.  After looting Ludios without finding so much as a crummy sack, he resorted to poly-piling for a bag.  Then he polymorphed into a black dragon to disintegrate Master Kaen.  He eventually started sporting dragon scale mail and a shield even though monks aren't supposed to wear body armor.  He plundered the grave goods of "dareman" (killed by a mumak while reading a book) to get Magicbane and other goodies.  The Astral Plane went very smoothly after eighty thousand turns of preparation.  He chose the correct curtain behind Famine to ascend with 3,994,254 points and armor class negative 49.

Oh Wormie Boy, the Hive, the Hive is calling
From Earth to Mars, and in the Scarlet Keep
Oryx is gone, and all the Thralls are dying
It's you, it's you must go and I must sleep

But come ye back, for we are paracausal
And by Sword Logic you must always grow
So you'll be here when I am just a fossil
Oh Wormie Boy, Oh Wormie Boy I love you so

And when you come and all the Knights are dying
If I am dead, as dead I well may be
You'll come and find the place where I am lying
And sing once more my viral song for me

And I shall hear, and thus begin an aftermath
So my revenge shall even sweeter be
For you will send my greetings to Xivu Arath
And I shall sleep until Immaru comes to me

I thought that maybe some dog had a vitamin overdose or something, but it was neon-yellow spraypaint in the snow to mark utility lines.