Les dejo Directamente mi Post de Pastebin XD! Funcional en Sourcers 2D/3D

1.- MonsterTable.cs
#region Gems Map
if (killer.MapID == 2021)
{
#region Gemas
if (killer.MapID == 2021)
{
uint GemID = 0;
byte Pezzi = 10;
#region Aleatorio
Pezzi = (byte)Kernel.Random.Next(1, 15);
switch (Pezzi)
{
case 1:
GemID = 700001;//PhoenixGem
break;
case 2:
GemID = 700011;//DragonGem
break;
case 3:
GemID = 700021;//FuryGem
break;
case 4:
GemID = 700031;//RaimbowGem
break;
case 5:
GemID = 700041;//KilynGem
break;
case 6:
GemID = 700051;//VioletGem
break;
case 7:
GemID = 700061;//MoonGem
break;
case 8:
GemID = 700071;//TortoiseGem
break;
case 9:
GemID = 700101;//ThunderGem
break;
case 10:
GemID = 700121;//GloryGem
break;

}
#endregion

var GemsID = Database.ConquerItemInformation.BaseInformations[GemID];
ushort X = Owner.X, Y = Owner.Y;

Game.Map Map = Kernel.Maps[Owner.MapID];
if (Map.SelectCoordonates(ref X, ref Y))
{
Network.GamePackets.FloorItem floorItem = new Network.GamePackets.FloorItem(true);
floorItem.Item = new Network.GamePackets.ConquerItem(true);
floorItem.Item.Color = (Game.Enums.Color)Kernel.Random.Next(4, 8);
floorItem.Item.ID = (uint)GemsID.ID;
floorItem.Item.MaximDurability = GemsID.Durability;
floorItem.Item.StackSize = 1;
floorItem.Item.MaxStackSize = GemsID.StackSize;
floorItem.Item.Durability = (ushort)(Kernel.Random.Next(1, 1) * 100);
floorItem.Item.MobDropped = true;
floorItem.ValueType = Network.GamePackets.FloorItem.FloorValueType.Item;
floorItem.ItemID = GemsID.ID;
floorItem.MapID = Owner.MapID;
floorItem.MapObjType = Game.MapObjectType.Item;
floorItem.X = X;
floorItem.Y = Y;
floorItem.Item.TimeLeftInMinutes = 0;
floorItem.Owner = killer.Owner;
floorItem.OwnerUID = killer.UID;
floorItem.Type = Network.GamePackets.FloorItem.Drop;
floorItem.OnFloor = Time32.Now;
floorItem.ItemColor = floorItem.Item.Color;
floorItem.UID = Network.GamePackets.FloorItem.FloorUID.Next;
while (Map.Npcs.ContainsKey(floorItem.UID))
floorItem.UID = Network.GamePackets.FloorItem.FloorUID.Next;
Map.AddFloorItem(floorItem);
SendScreenSpawn(floorItem);
}
}
#endregion
}
#endregion

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2.- World/Thread.cs void WorldTournaments

#region GemsMap [23:11] // Todos los Dias
if (DateTime.Now.Hour == 23 && DateTime.Now.Minute == 10)
{
Kernel.GemMap = true;
foreach (var client in Program.Values)
Kernel.SendWorldMessage(new Message("Evento Mapa De Gema Comenzo Ve a Recolectar Gemas Para tu equipo!", Color.White, Message.TopLeft), Program.Values);
foreach (var client in Program.Values)
client.MessageBox("Evento GemMap Comenzo Quieres Ir? ",
(p) => { p.Entity.Teleport(2021, 263, 65); }, null, 8);
}
else if (DateTime.Now.Hour == 23 && DateTime.Now.Minute == 21)
{
Kernel.GemMap = false;
foreach (var client in Program.Values)
Kernel.SendWorldMessage(new Message("Evento Mapa De Gema Termino Buena Suerte en la Proxima!", Color.White, Message.TopLeft), Program.Values);
foreach (var client in Program.Values)
client.Entity.Teleport(1002,314,292);
}
#endregion

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3.- Kernel.cs
#region GemsMap
public static bool GemMap = false;
#endregion
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4.- PacketHandler/GeneralData void LoginMessages o "CompleteLogin"
#region Sacar Mapa Gema
if (Kernel.GemMap == false)//Sacar si el Evento esta Inactivo
{
client.Entity.Teleport(1002, 314, 292);
}
else if (client.Entity.MapID == 2021)//Sacar Si Esta Dentro del Mapa
{
client.Entity.Teleport(1002, 314, 292);
}
#endregion
=====================================================================================================
5.- NPCs, yo no creè ningun npc para dicho evento ya que yo puse que los mandara directamente al Evento sin necesidad de algun npcs, si quieren pueden crearlo ustedes mismos y deberian cambiar las coordendas y mapa de la parte de World/Thread a la Hora de Comenzar.
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6.- MonsterSpawn (DB-SQL)
INSERT INTO monsterspawns VALUES ('231119', '2021', '0036', '0248', '0047', '0263', '0020', '0010', '0015', '2168', '0000', '0000', '0000', '0000');
INSERT INTO monsterspawns VALUES ('231120', '2021', '0132', '0265', '0124', '0292', '0035', '0010', '0030', '2168', '0000', '0000', '0000', '0000');
INSERT INTO monsterspawns VALUES ('231121', '2021', '0185', '0286', '0191', '0240', '0030', '0010', '0020', '2168', '0000', '0000', '0000', '0000');
INSERT INTO monsterspawns VALUES ('231122', '2021', '0258', '0264', '0248', '0253', '0000', '0010', '0000', '2168', '0000', '0000', '0000', '0000');
INSERT INTO monsterspawns VALUES ('231123', '2021', '0241', '0447', '0295', '0522', '0050', '0010', '0040', '2168', '0000', '0000', '0000', '0000');
INSERT INTO monsterspawns VALUES ('231124', '2021', '0265', '0206', '0538', '0299', '0500', '0010', '0450', '2168', '0000', '0000', '0000', '0000');

Si tienen Errores en meter el codigo SQL, Creènlo Manualmente aca les dejo como deberian Iniciar:
Aca yo se los estoy explicando por separado este codigo :INSERT INTO monsterspawns VALUES ('231119', '2021', '0036', '0248', '0047', '0263', '0020', '0010', '0015', '2168', '0000', '0000', '0000', '0000');

231119 -- Es el ID
2021 --- Es el Mapa
0036 -- Es la Coordenada Inicial
0248 -- Es la Coordenada Inicial
0047 -- Es la Coordenada Secundaria
0263 -- Es la Coordenada Secundaria
0020 -- es el Numero De Bichos al Haber
0010 -- Es el Tiempo de Re-Aparecer en Segundos.
0015 -- Es el Maximo de Bichos
0000 -- Tiempo de Inicio (No Tocar en este caso)
0000 -- Tiempo de Finalizacion (No Tocar en este caso)
0000 -- ReAparecer Aleatorio Inicial (No Tocar en este caso)
0000 -- ReAparecer Aleatorio Secundario (No Tocar en este caso)

Ahi ya tendrian el codigo principal por separado para que puedan agregarlo Manualmente en caso de problemas.

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Fuente: https://pastebin.com/TY7QP1TT