ItemOptionRate

Controls probability distribution for item options when items are generated

This configuration file defines the probability tables used when determining item options (level, skill, luck, excellent options, etc.) during item generation.

File Location

GameServer/Data/Item/ItemOptionRate.xml

Dependencies

Depends On	Purpose
Item.xml	Item definitions that receive these options
ItemOption.xml	Stat bonuses applied based on selected options

How It Works

When an item is generated, the server:

1. Looks up the appropriate Index based on the source (monster drop, chaos mix, event, etc.)

2. Uses weighted random selection to pick an option value

3. Applies that option to the item

Weighted Selection: If Rate0=7000, Rate1=2000, Rate2=1000, the system has 70% chance for option 0, 20% for option 1, 10% for option 2. These are NOT cumulative - they are relative weights.

Configuration Sections

LevelOptions

Controls item enhancement level (+0 to +15) when items drop.

<LevelOptions>
    <Level Index="0" Rate0="7000" Rate1="1500" Rate2="1000" Rate3="500"
           Rate4="0" ... Rate15="0" Name="Level Option (Common)"/>
</LevelOptions>

Attribute	Type	Range	Description
Index	int	0-53	Source identifier (see Index Reference below)
Rate0 - Rate15	int	0-10000	Weight for each level (+0 to +15)
Name	string	-	Human-readable description

Level Index Reference

Index	Source	Typical Use
0	Common drops	Regular monster kills
1	Excellent items	Forces +0 for excellent drops
2	Set items	Forces +0 for set items
3	Chaos mix	Equal chance +0 to +4
9	Moss Merchant	NPC-sold items
10	Lucky items	Higher level distribution
11-26	EventItemBag (fixed)	Forces specific level (11=+0, 12=+1, etc.)
27-53	EventItemBag (range)	Random within level range

Example - Common Drop Distribution:

<Level Index="0" Rate0="7000" Rate1="1500" Rate2="1000" Rate3="500"
       Rate4="0" Rate5="0" ... Name="Level Option (Common)"/>

• 70% chance for +0

• 15% chance for +1

• 10% chance for +2

• 5% chance for +3

• 0% chance for +4 through +15

SkillOptions

Controls whether items spawn with skill option (for weapons).

<SkillOptions>
    <Skill Index="0" Rate0="9400" Rate1="600" Name="Skill Option (Common)"/>
</SkillOptions>

Attribute	Type	Range	Description
Index	int	0-13	Source identifier
Rate0	int	0-10000	Weight for NO skill
Rate1	int	0-10000	Weight for HAS skill

Common Values:

• Index 0 (Common): 94% no skill, 6% has skill

• Index 1 (Excellent): 100% has skill

• Index 2 (Set): 100% has skill

LuckOptions

Controls whether items spawn with luck option (+critical damage rate).

<LuckOptions>
    <Luck Index="0" Rate0="9600" Rate1="400" Name="Luck Option (Common)"/>
</LuckOptions>

Attribute	Type	Range	Description
Index	int	0-13	Source identifier
Rate0	int	0-10000	Weight for NO luck
Rate1	int	0-10000	Weight for HAS luck

JoLOptions

Controls Jewel of Life additional option value (+0 to +7 additional damage/defense).

<JoLOptions>
    <JoL Index="0" Rate0="9600" Rate1="150" Rate2="100" Rate3="50"
         Rate4="0" Rate5="0" Rate6="0" Rate7="0" Name="JoL Option (Common)"/>
</JoLOptions>

Attribute	Type	Range	Description
Index	int	0-31	Source identifier
Rate0 - Rate7	int	0-10000	Weight for each JoL value

JoL values add flat damage (weapons) or defense (armor). Each point is significant for early-game balance.

ExcOptions

Controls how many excellent options spawn on excellent items (0-6 options).

<ExcOptions>
    <Exc Index="1" Rate0="0" Rate1="7500" Rate2="2500" Rate3="0"
         Rate4="0" Rate5="0" Rate6="0" Name="Exc Option (Exc)"/>
</ExcOptions>

Attribute	Type	Range	Description
Index	int	0-28	Source identifier
Rate0 - Rate6	int	0-10000	Weight for each option count

For Excellent Drops (Index 1):

• 75% chance for 1 excellent option

• 25% chance for 2 excellent options

This controls the count of excellent options, not which specific options. The actual options are determined by ExcellentOptionRate.xml.

SetOptions

Controls set item tier when set items drop.

<SetOptions>
    <Set Index="2" Rate0="0" Rate1="8000" Rate2="2000" Name="Set Option (Set)"/>
</SetOptions>

Attribute	Type	Range	Description
Index	int	0-14	Source identifier
Rate0	int	0-10000	Weight for tier 0
Rate1	int	0-10000	Weight for tier 1
Rate2	int	0-10000	Weight for tier 2

SocketOptions

Controls socket count for socket weapons and pentagram items.

<SocketOptions>
    <Socket Index="3" Rate0="0" Rate1="8400" Rate2="1550" Rate3="50"
            Rate4="0" Rate5="0" Name="Socket Option (OneHand)"/>
</SocketOptions>

Attribute	Type	Range	Description
Index	int	0-23	Source identifier
Rate0 - Rate5	int	0-10000	Weight for each socket count

Index Reference (All Sections)

Index	Name	Usage
0	Common	Regular monster drops
1	Exc	Excellent item generation
2	Set	Set item generation
3	ChaosItemMix / DinorantMix / OneHand	Chaos machine mixes
4	Wing2Mix / TwoHand	Second wing mix / Two-hand weapons
5	Wing1Mix / Pentagram	First wing mix / Pentagram items
6	Wing3Mix / SocketWeaponMix	Third wing mix
7	MonsterWingMix	Monster wing mix
8	SocketWeaponMix	Socket weapon mix
9	MossMerchant	Moss NPC purchases
10	Lucky	Lucky item drops
11+	EventItemBag	Specific event configurations

Examples

High-Quality Server

Increase base item quality for a more rewarding experience:

<!-- More common +3 to +5 drops -->
<Level Index="0" Rate0="4000" Rate1="2500" Rate2="1500" Rate3="1000"
       Rate4="500" Rate5="500" Rate6="0" ... Name="Level Option (Common)"/>

<!-- Higher luck chance -->
<Luck Index="0" Rate0="9000" Rate1="1000" Name="Luck Option (Common)"/>

Hardcore Server

Event Rewards

Common Issues

Rates Don't Add to 10000: While rates work as relative weights even if they don't sum to 10000, inconsistent totals can make balance calculations confusing. Keep totals at 10000 for clarity.

Wrong Index Used: If items aren't dropping with expected options, verify you're using the correct Index for the item source (drops, mixes, events).

All Rates Zero: If all rates for an option type are 0, the item will receive option value 0. This can cause issues for socket items that expect at least 1 socket.