Topic does not have a purpose to harm somebody or runuo. Here are only some points for differences on OSI. (sorry for bad english)
I`m playing on OSI for few days and I saw some differences (playing on Europe):
Peaced monster has a chance to unclaim if somebody atacks it.
Mage Curse spell does not lower resists, only stats.
Many creatures cast Curses.
Faster Cast Recovery is affected by spell circles.
Failning on tailoring craft takes resources Random from half that is needed, can take 0 too. I dont know about the others skills but I will check.
Cuting clotches and armor gives only 1/3 or lower from the material. I cut short pants, it cost 6 cloth to make and it gives only 1 cloth. (strange that 1 cloth doesnot stack with other cloth, very annoying )
All hats can have magic properties. Varios hats with props can be found in loot.
Mining is faster - runuo has more delay on diging.
Skill gain ten times or more slower.
Stats gain - 10 times easyer. (Most every new login for a day and recal gives different stat without skill gain!! There you do not need to gain skill to gain stat. There is no mater what skill you practice you can gain every type of stat - thats not so role play i think. Also there is some type of time limit how often do you gain stat, for me it looks like 15 minutes.)
On OSI there are many player vendors, selling things for a big costs - I sow shop with 20 arties, every one cost between 7 and 12 milions. On runuo if you do this you must pay to vendor about 100k per day. I think there is cap on how much money a player vendor takes. On runuo vendor taxes are killing the trade.
NPC prices in diferent towns lowers or raises depending on demand.
Weapon properties order differs, damage is under swing, and other stuff, maybe a screenshot will help here.
Pickaxes and smith hamers can have magic properties if founded in loot.
Siege hammer - mace weapon with graphic of the prospector tool.
Many different rares, everybody has craze on rare items.
NPC vendors speak some times when you move by - good day or such, in wildnes some npc shout - "help, they are killing peaple here" - when there is a monster around.
Jungles (like thouse near trinstic) have very nice ambient sounds - of birds and some others. Some other places has other cool ambiend sounds.
In jungles there are gorilas- giving in loot a banana sometimes
. Easy to kill, when carved gives 1 meat and 12 leather in felucca. They are peacefull and do not atack people until atacked.
"All come" comand doesnot mean "Come here and then follow me". On OSI after all come tamed creature comes to you and then begins to wander around (duno good or bad).
Jevels and armor can have night sight.
Earings and necklaces with ivisibility charges.
Also runuo has some cool modifications. On OSI are some very annoying things, like several typer of ore - all ore has 4 graphics, they are not stakable one with another, some resourse doesnot stack when crafting or cuting - you must stack them by your self or worse - doesnot stack in general (oil cloth). There some bugs with houses, sometomes it kicks me out of my own house, and doesnt let me access the door and the chests. Login out and again in corrects the problem.
But one verry good point for OSI is lower required internet conection. I play there with 200-300ms and I almost doesnot saw lag. I notised that items in houses are displayed after entering the house, but strange how they done this, because not all the items are hidden. Running arround the houses on runuo is veruy painful even with a good connection but on OSI is not. Note that on OSI finding a free space for a house is a big pain.
I will play there few more days and will try to learn PvP differences. For now i know that parry and MR is amust for all warior types and even for mages.
Hope to be helpful.