The PVP/PK element in Lineage 2 is actually its forte. Albeit free, its also regulated somehow.
1- as opposed to GW, Lineage 2 has very few instances, and conflict over available resources, hunting places...etc. is the core of the game.
2- if you attack another player, your name turns purple rendering you a legitimate target for the defending player and other players as well. Anyone participating in the fight becomes purple or "flagged". You do not need to activate that it just happens. If you cease fighting your name returns to its normal colour within seconds, it starts flashing before it finally turns white to warn attackers.
3- if you attack and kill a player who refuses to fight back then your name turns red and you acquire Karma. Karma needs to be cleared either by hunting or by getting killed yourself. The higher your PK count the more Karma you acquire per kill and the harder it is to remove it. Having karma means also free for all [players and town guards], i.e. anyone who spots you can try to kill you without acquiring karma himself for killing you, even if you do not defend yourself.
4- the horror of karma is, at 5 pk counts and higher, if killed a person with karma can drop items. This includes inventory items and equipped armour and jewlery, which are usable by other players or sellable in the market, I might add.
5- usually players with karma normally need help from guild members in the form of help "safely exp" until karma drops to 0 or they kill him in a safe place and give him back his dropped items. Killing a player with karma is the fastest way to remove it. A high level healer can rez him with little exp loss due to death then. If karma is high enough, he may have to be killed several times.
6- there is a "sin eater" quest to reduce pk count and thereby reduce acquired karma upon pk. But the quest is a pain in the ass.
7- clan[guild]/alliance wars mean large scale fights everywhere. If you are in a clan thats at war. You will be the laughing stock of the server if you chicken out of fights.
As you can see, you kill players according to this system at your own risk. Often you stand to lose a lot more than the pk'ee.
Again non of this is applicable to GW because it waqs made from the ground up to avoid conflict. PVP in GW is a sport.
M

