The six Racial Capital Cities are heavily guarded by NPC Guards (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/world.html

Players can still fight within cities though (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/combat.html

Anyone can fight anyone, anywhere as long as they are willing to face the consequences - in the form of Darkfalls alignment (AR 10, SR 10) Source: system http://www.darkfallonline.com/features/interact.html

There will be arena events to compete for fun and profit (AR 10, SR 10) Source: http://www.darkfallonline.com/features/challenge.html

The game fully supports siege warfare for towns between rivaling Alliances and Clans (AR 10, SR 10) Source: n/a, its a well known fact

There will be no non-pvp servers. ("Were sorry, but we cannot offer a softer version of Darkfall") (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/world.html

Players can install entire kingdoms, this is fully supported by the game (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/world.html

Player-run kingdoms can set the rules of their borders, if they want their gards to kill pkers on sight or not (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/world.html

Characters start out with a neutral alignment, and based on your actions, this alignment changes (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/world.html

Pkers will be attacked by most guards on sight (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/world.html

Pkers who want to change their alignment towards good will have to undergo a challenging and difficult process (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/world.html

Pkers will have a hard time finding a safe city to trade in (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/combat.html

When a character dies, all of his belongings that he carried with him stay on his corpse and can completely be looted by others (AR 10, SR 10) Source: http://www.darkfallonline.com/faq/world.html

Good aligned players receive an alignment boost if they kill pkers (AR 8, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

The alignment Scale is -100 (ultimate evil) to +100 (paragon of good) (AR 9, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

Each time you kill a player or NPC of your own race (or friendly race), you take a smaller or bigger alignment hit (AR 9, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

Wars between clans must be properly declared (AR 9, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

NPCs belonging to opposing clans can be killed (AR 8, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

Sinking to a negative alignment among your own race doesn't improve your standing with its traditional enemies (AR 8, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

Killing individuals of your own race (or an allied race) who have a negative alignments will grant you an alignment bonus (AR 8, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

Killing evil NPCs won't improve your alignment, nor will solving quests, killing monsters (AR 8, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

Increasing your alignment will give you access to quests and rewards that are unavailable if your score is lower (AR 8, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

Players with a negative alignment may bind to Chaos Stones, and thus gain a relatively safe place to respawn if killed (AR 8, SR 8) Source: http://rpgvault.ign.com/articles/671/671666p3.html

clan-controlled areas occupy the majority of the area in each realm (AR 7, SR 8) Source: http://rpgvault.ign.com/articles/713/713375p1.html

Pkers are limited to free towns, remote areas within the realm, and their own player-run cities (AR 8, SR 8) Source: http://rpgvault.ign.com/articles/728/728853p1.html

Every kill gets recorded along with some details about it (AR 10, SR 9) Source: http://forums.darkfallonline.com/showthread.php?t=43219

Unlimited people can be looting the same corpse simultaneously (AR 5, SR 9) Source: http://forums.darkfallonline.com/showthread.php?t=43219

You can kill Players while they are on their mount, and you can kill their mount while they are on it (AR 8, SR 9) Source: http://forums.darkfallonline.com/showthread.php?t=43219