http://www.runuo.com/community/threads/runuo-2-2-orbsa-svn-mob-level-system.515337/

New 
Hi this is my first release of mob level system is very simpl its need just two distro modification in PlayerMobile but wery easy. Im using ORBSA core but I thing there will be not problem to put it in any RUNUO 2.2 maybe even in older stuff.

So what it actualy does is any time the monster kill a player it will earn some experience poit depend on base stats like Str + Dex + Int of the player. Every level will get some extra gold and +10 of basic stats , aswell with higher level is the minimum tame skill increased, up to level 5 where monster become Paragon and untamable, all those stuffs cold be very easy changed in script.

I used this forum to find a ideas how to make it works so not all credits belong to me 

Instalation: Just drop Ilevel.cs to custom script folder and make this PlayerMobile modification.

PlayerMobile.cz
add on begining of Player mobile:

Code:
//add koryn level creature system -------------
using Koryn.IlevelCreature;
//end koryn level creature system -------------find public override void OnDeath(Container c) and change the begining to look like this:

Code:
public override void OnDeath(Container c)
        {
           
            //add koryn level creature system------------------------
       
                Mobile m_killer = this.FindMostRecentDamager(true);
 
                if (m_killer is ILevel)
                {
                   
                    ILevel.levelchange(m_killer, this);
                }
         
            //end koryn level creature system---------------------------
 
              if (m_NonAutoreinsuredItems > 0)
              {
                SendLocalizedMessage(1061115);Creatures: to create levelable creature just add this on begining of monster script


Code:
//add koryn level creature system -------------
using Koryn.IlevelCreature;
//end koryn level creature system -------------and change BaseCreature to ILevel

public class BlackBear : BaseCreature ---> public class BlackBear : ILevel

as you can see its very easy if you dont want to change existing monsters just copy monster which you wanna have and rename it and make that few changes in script, I put one example monster to dowload part of this thread.

!!! Warning  !!! this was never tested on live sever and if you will change existing monster they will propably deleted on start of your server so be carefull and test it on non Live server first. All test I did was made on my own so if you will find any bugs or problems just let me know.