Random Options (Korean: 옵션부여, literally "Option Endow") are additional effects that are added to equipment through a variety of processes. Unlike an enchant or card, they do not require a card slot on the equipment.
Random options appear as additional boxes in between the item window and its card information.
In Zero and kRO, equipment with options will produce a pillar of light when dropped on the ground. The colour of the light changes depending on how many options are on the equipment.
Every Crimson weapon has a random element endowed to it upon its drop. Available elements include:
Neutral
Fire
Water
Wind
Water
Dark
Holy
Vicious Mind Weapons
Every Vicious Mind Weapon has 3 random options included upon its drop.
Geffen Magic Tournament
Ghost Palace
Dreams and Shadows
King's Heel
Enemy Drops
In Transcendence, weapon drops from any monster will have 1~4 random options attached to it. The level and class (eg, normal enemies, or champion or boss type monsters from Frenzy Fields<ref>WarpPortal Forums</ref>) of the monster determines the number of options granted, as well as which effects can occur.<ref>kRO Zero Website</ref><ref>WarpPortal Website</ref>
Weapons
Each weapon class falls under the given categories:
Melee
Ranged
Magic
Sword
Bow
Rod
Spear
Instrument
Book
Knuckle
Whip
Dagger
Katar
Axe
Tier 1 (Monster level 1~20)
Melee
Ranged
Magic
Agi +1~3
Vit +1~3
Dex +1~3
Luk +1~3
MaxHP +100~300
MaxSP +20~60
Flee +5~20
Atk +10~20
Int +1~3
Atk% +1~5
Matk +10~20
ASPD +1
Heal increase +3~5%
Variable casting time -3~5%
Hit +5~20
Magic damage to Fire property +5~10%
Crit +3~6
Magic damage to Wind property +5~10%
Str +1~3
Long-ranged damage +3~5%
Magic damage to Earth property +5~10%
Magic damage to Water property +5~10%
Tier 2 (Monster level 21~40)
Melee
Ranged
Magic
Agi +1~4
Vit +1~4
Dex +1~4
Luk +1~4
MaxHP +100~300
MaxSP +20~60
Flee +10~30
Atk +20~50
Matk +20~50
Atk% 5~10
Matk% +5~10
ASPD +1~2
Heal increase +10~20%
Hit +10~30
Magic damage to Fire property +10~15%
Crit +5~10
Magic damage to Wind property +10~15%
Critical damage +10~20%
Magic damage to Earth property +10~15%
Str +1~4
Long-ranged damage +3~5%
INT +1~4
Tier 3 (Monster level 41~60)
Option 1
Melee
Ranged
Magic
Agi +1~5
Vit +1~5
Dex +1~5
Luk +1~5
MaxHP +100~300
MaxSP +20~60
Flee +10~30
Heal received +10~20%
Atk +20~50
Matk +20~50
Atk% 5~10
Matk% +5~10
ASPD +1~2
Heal increase +10~20%
Variable casting time -5~10%
Hit +10~30
Crit +5~10
Critical damage +10~20%
INT +1~5
Str +1~5
Long-ranged damage +5~10%
Option 2
Melee
Ranged
Magic
Physical damage to Neutral property +10~20%
Magic damage to Neutral property +10~20%
Physical damage to Fire property +10~20%
Magic damage to Fire property +10~20%
Physical damage to Water property +10~20%
Magic damage to Water property +10~20%
Physical damage to Wind property +10~20%
Magic damage to Wind property +10~20%
Physical damage to Earth property +10~20%
Magic damage to Earth property +10~20%
Physical damage to Ghost property +10~20%
Magic damage to Ghost property +10~20%
Physical damage to Dark property +10~20%
Magic damage to Dark property +10~20%
Physical damage to Holy property +10~20%
Magic damage to Holy property +10~20%
Physical damage to Poison property +10~20%
Magic damage to Poison property +10~20%
Physical damage to Undead property +10~20%
Magic damage to Undead property +10~20%
Physical damage to Formless race +10~20%
Magic damage to Formless race +10~20%
Physical damage to Undead race +10~20%
Magic damage to Undead race +10~20%
Physical damage to Brute race +10~20%
Magic damage to Brute race +10~20%
Physical damage to Plant race +10~20%
Magic damage to Plant race +10~20%
Physical damage to Insect race +10~20%
Magic damage to Insect race +10~20%
Physical damage to Fish race +10~20%
Magic damage to Fish race +10~20%
Physical damage to Demon race +10~20%
Magic damage to Demon race +10~20%
Physical damage to DemiHuman race +10~20%
Magic damage to DemiHuman race +10~20%
Physical damage to Angel race +10~20%
Magic damage to Angel race +10~20%
Physical damage to Dragon race +10~20%
Magic damage to Dragon race +10~20%
Weapon cannot be destroyed in battle
Tier 4 (Monster level 61 onward)
Option 1
Melee
Ranged
Magic
Agi +1~6
Vit +1~6
Dex +1~6
Luk +1~6
MaxHP +100~500
MaxSP +20~100
Flee +10~35
Heal received +10~24%
Atk +20~60
Matk +20~60
Atk% 5~12
Matk% +5~12
ASPD +1~2
Heal increase +10~24%
Variable casting time -5~12%
Hit +10~35
Crit +5~12
Critical damage +10~24%
INT +1~5
Str +1~6
Long-ranged damage +5~15%
Option 2
Melee
Ranged
Magic
Physical damage to Neutral property +10~25%
Magic damage to Neutral property +10~25%
Physical damage to Fire property +10~25%
Magic damage to Fire property +10~25%
Physical damage to Water property +10~25%
Magic damage to Water property +10~25%
Physical damage to Wind property +10~25%
Magic damage to Wind property +10~25%
Physical damage to Earth property +10~25%
Magic damage to Earth property +10~25%
Physical damage to Ghost property +10~25%
Magic damage to Ghost property +10~25%
Physical damage to Dark property +10~25%
Magic damage to Dark property +10~25%
Physical damage to Holy property +10~25%
Magic damage to Holy property +10~25%
Physical damage to Poison property +10~25%
Magic damage to Poison property +10~25%
Physical damage to Undead property +10~25%
Magic damage to Undead property +10~25%
Physical damage to Formless race +10~25%
Magic damage to Formless race +10~25%
Physical damage to Undead race +10~25%
Magic damage to Undead race +10~25%
Physical damage to Brute race +10~25%
Magic damage to Brute race +10~25%
Physical damage to Plant race +10~25%
Magic damage to Plant race +10~25%
Physical damage to Insect race +10~25%
Magic damage to Insect race +10~25%
Physical damage to Fish race +10~25%
Magic damage to Fish race +10~25%
Physical damage to Demon race +10~25%
Magic damage to Demon race +10~25%
Physical damage to DemiHuman race +10~25%
Magic damage to DemiHuman race +10~25%
Physical damage to Angel race +10~25%
Magic damage to Angel race +10~25%
Physical damage to Dragon race +10~25%
Magic damage to Dragon race +10~25%
Fever Dungeon Drop
Option 1
Melee
Ranged
Magic
Str +1~4
Agi +1~4
Vit +1~4
Int +1~4
Dex +1~4
Luk +1~4
Option 2
Melee
Ranged
Magic
Physical damage to Neutral property +3~9%
Magic damage to Neutral property +3~9%
Physical damage to Fire property +3~9%
Magic damage to Fire property +3~9%
Physical damage to Water property +3~9%
Magic damage to Water property +3~9%
Physical damage to Wind property +3~9%
Magic damage to Wind property +3~9%
Physical damage to Earth property +3~9%
Magic damage to Earth property +3~9%
Physical damage to Ghost property +3~9%
Magic damage to Ghost property +3~9%
Physical damage to Dark property +3~9%
Magic damage to Dark property +3~9%
Physical damage to Holy property +3~9%
Magic damage to Holy property +3~9%
Physical damage to Poison property +3~9%
Magic damage to Poison property +3~9%
Physical damage to Undead property +3~9%
Magic damage to Undead property +3~9%
Physical damage to Formless race +3~9%
Magic damage to Formless race +3~9%
Physical damage to Undead race +3~9%
Magic damage to Undead race +3~9%
Physical damage to Brute race +3~9%
Magic damage to Brute race +3~9%
Physical damage to Plant race +3~9%
Magic damage to Plant race +3~9%
Physical damage to Insect race +3~9%
Magic damage to Insect race +3~9%
Physical damage to Fish race +3~9%
Magic damage to Fish race +3~9%
Physical damage to Demon race +3~9%
Magic damage to Demon race +3~9%
Physical damage to DemiHuman race +3~9%
Magic damage to DemiHuman race +3~9%
Physical damage to Angel race +3~9%
Magic damage to Angel race +3~9%
Physical damage to Dragon race +3~9%
Magic damage to Dragon race +3~9%
Atk +5~15
Matk +5~15
Hit +4~12
Crit +3~9
Critical damage +3~9
Long-ranged damage +3~9%
Option 3
Melee
Ranged
Magic
MaxHP +60~180
MaxSP +20~60
MaxHP% +2~6
MaxSP% +2~6
HP recovery +10~30
SP recovery +10~30
Flee +5~15
Heal received +3~9%
After cast delay -3~9%
SP consumption -1~3%
DEF ignore of Formless race +3~9%
MDEF ignore of Formless race +3~9%
DEF ignore of Undead race +3~9%
MDEF ignore of Undead race +3~9%
DEF ignore of Brute race +3~9%
MDEF ignore of Brute race +3~9%
DEF ignore of Plant race +3~9%
MDEF ignore of Plant race +3~9%
DEF ignore of Insect race +3~9%
MDEF ignore of Insect race +3~9%
DEF ignore of Fish race +3~9%
MDEF ignore of Fish race +3~9%
DEF ignore of Demon race +3~9%
MDEF ignore of Demon race +3~9%
DEF ignore of DemiHuman race +3~9%
MDEF ignore of DemiHuman race +3~9%
DEF ignore of Angel race +3~9%
MDEF ignore of Angel race +3~9%
DEF ignore of Dragon race +3~9%
MDEF ignore of Dragon race +3~9%
Weapon cannot be destroyed in battle
Heal increase +3~9%
Weapon size penalty removed
Variable casting time -3~9%
Fire property
Water property
Wind property
Earth property
Poison property
Holy property
Dark property
Ghost property
Undead property
Fever Dungeon
Option 1
Melee
Ranged
Magic
Atk +5~30
Matk +5~30
Atk% +1~5
Matk% +1~5
Option 2
Melee
Ranged
Magic
Flee +10~20
Physical damage to Neutral property +5~10%
Magic damage to Neutral property +5~10%
Physical damage to Fire property +5~10%
Magic damage to Fire property +5~10%
Physical damage to Water property +5~10%
Magic damage to Water property +5~10%
Physical damage to Wind property +5~10%
Magic damage to Wind property +5~10%
Physical damage to Earth property +5~10%
Magic damage to Earth property +5~10%
Physical damage to Ghost property +5~10%
Magic damage to Ghost property +5~10%
Physical damage to Dark property +5~10%
Magic damage to Dark property +5~10%
Physical damage to Holy property +5~10%
Magic damage to Holy property +5~10%
Physical damage to Poison property +5~10%
Magic damage to Poison property +5~10%
Physical damage to Undead property +5~10%
Magic damage to Undead property +5~10%
HIT +5~20
Heal increase +5~10%
ASPD +1
Variable casting time -5~10%
Crit +2~5
Critical damage +5~10
Option 3
Melee
Ranged
Magic
Physical damage to Formless race +5~10%
Magic damage to Formless race +5~10%
Physical damage to Undead race +5~10%
Magic damage to Undead race +5~10%
Physical damage to Brute race +5~10%
Magic damage to Brute race +5~10%
Physical damage to Plant race +5~10%
Magic damage to Plant race +5~10%
Physical damage to Insect race +5~10%
Magic damage to Insect race +5~10%
Physical damage to Fish race +5~10%
Magic damage to Fish race +5~10%
Physical damage to Demon race +5~10%
Magic damage to Demon race +5~10%
Physical damage to DemiHuman race +5~10%
Magic damage to DemiHuman race +5~10%
Physical damage to Angel race +5~10%
Magic damage to Angel race +5~10%
Physical damage to Dragon race +5~10%
Magic damage to Dragon race +5~10%
Physical damage to normal class +3~7%
Magic damage to normal class +3~7%
Physical damage to boss class +3~7%
Magic damage to boss class +3~7%
DEF ignore of Formless race +5~15%
MDEF ignore of Formless race +5~15%
DEF ignore of Undead race +5~15%
MDEF ignore of Undead race +5~15%
DEF ignore of Brute race +5~15%
MDEF ignore of Brute race +5~15%
DEF ignore of Plant race +5~15%
MDEF ignore of Plant race +5~15%
DEF ignore of Insect race +5~15%
MDEF ignore of Insect race +5~15%
DEF ignore of Fish race +5~15%
MDEF ignore of Fish race +5~15%
DEF ignore of Demon race +5~15%
MDEF ignore of Demon race +5~15%
DEF ignore of DemiHuman race +5~15%
MDEF ignore of DemiHuman race +5~15%
DEF ignore of Angel race +5~15%
MDEF ignore of Angel race +5~15%
DEF ignore of Dragon race +5~15%
MDEF ignore of Dragon race +5~15%
DEF ignore of normal class +5~10%
MDEF ignore of normal class +5~10%
Heal increase +5~10%
Option 4
Melee
Ranged
Magic
Physical damage to Neutral property +5~10%
Magic damage to Neutral property +5~10%
Physical damage to Fire property +5~10%
Magic damage to Fire property +5~10%
Physical damage to Water property +5~10%
Magic damage to Water property +5~10%
Physical damage to Wind property +5~10%
Magic damage to Wind property +5~10%
Physical damage to Earth property +5~10%
Magic damage to Earth property +5~10%
Physical damage to Ghost property +5~10%
Magic damage to Ghost property +5~10%
Physical damage to Dark property +5~10%
Magic damage to Dark property +5~10%
Physical damage to Holy property +5~10%
Magic damage to Holy property +5~10%
Physical damage to Poison property +5~10%
Magic damage to Poison property +5~10%
Physical damage to Undead property +5~10%
Magic damage to Undead property +5~10%
Physical damage to Formless race +5~10%
Magic damage to Formless race +5~10%
Physical damage to Undead race +5~10%
Magic damage to Undead race +5~10%
Physical damage to Brute race +5~10%
Magic damage to Brute race +5~10%
Physical damage to Plant race +5~10%
Magic damage to Plant race +5~10%
Physical damage to Insect race +5~10%
Magic damage to Insect race +5~10%
Physical damage to Fish race +5~10%
Magic damage to Fish race +5~10%
Physical damage to Demon race +5~10%
Magic damage to Demon race +5~10%
Physical damage to DemiHuman race +5~10%
Magic damage to DemiHuman race +5~10%
Physical damage to Angel race +5~10%
Magic damage to Angel race +5~10%
Physical damage to Dragon race +5~10%
Magic damage to Dragon race +5~10%
Atk +10~20
Matk +10~20
Atk% +1~5
Matk% +1~5
ASPD +1
Variable casting time -5~10%
HIT +5~10
FLEE +10~20
Armour
Champion Monster
Option 1
Armour
Garment
Footwear
Str +1~4
Agi +1~4
Vit +1~4
Int +1~4
Luk +1~4
MaxHP% +3~7
Dex +1~4
MaxSP% +3~7
FLEE +10~30
HIT +10~30
HP Recovery +40~100
SP Recovery +20~50
Option 2
Armour
Garment
Footwear
MaxSP +40~100
Atk +10~20
Matk +10~20
MaxHP +200~500
MaxHP +100~300
DEF +10~100
DEF +10~50
MDEF +5~30
MDEF +5~15
Water resist +10~20
Formless race resist +10~20
Crit vs Formless race +10~20
Earth resist +10~20
Undead race resist +10~20
Crit vs Undead race +10~20
Fire resist +10~20
Brute race resist +10~20
Crit vs Brute race +10~20
Wind resist +10~20
Insect race resist +10~20
Crit vs Insect race +10~20
Poison resist +10~20
Fish race resist +10~20
Crit vs Fish race +10~20
Holy resist +10~20
Demon race resist +10~20
Crit vs Demon race +10~20
Dark resist +10~20
DemiHuman race resist +10~20
Crit vs DemiHuman race +10~20
Ghost resist +10~20
Angel race resist +10~20
Crit vs Angel race +10~20
Undead resist +10~20
Dragon race resist +10~20
Crit vs Dragon race +10~20
Fever Dungeon
Option 1
Armour
Garment
Footwear
MaxSP +25~50
MaxHP% 1~5
MaxSP% 1~5
MaxHP +150~350
MaxHP +150~250
Option 2
Armour
Garment
Footwear
FLEE +5~15
DEF +10~30
DEF +10~50
MDEF +1~3
MDEF +2~5
Heal received +3~7%
Heal received +5~10%
Variable casting time -5~10%
HIT +5~10
Physical resist vs Neutral property enemies +5~10%
Physical resist vs Water property enemies +5~10%
Physical resist vs Earth property enemies +5~10%
Physical resist vs Fire property enemies +5~10%
Physical resist vs Wind property enemies +5~10%
Physical resist vs Holy property enemies +5~10%
Physical resist vs Dark property enemies +5~10%
Physical resist vs Ghost property enemies +5~10%
Physical resist vs Poison property enemies +5~10%
Physical resist vs Undead property enemies +5~10%
Magical resist vs Neutral property enemies +5~10%
Magical resist vs Water property enemies +5~10%
Magical resist vs Earth property enemies +5~10%
Magical resist vs Fire property enemies +5~10%
Magical resist vs Wind property enemies +5~10%
Magical resist vs Holy property enemies +5~10%
Magical resist vs Dark property enemies +5~10%
Magical resist vs Ghost property enemies +5~10%
Magical resist vs Poison property enemies +5~10%
Magical resist vs Undead property enemies +5~10%
HP Recovery +15~50
Water property resist +1~5%
SP Recovery +15~50
Earth property resist +1~5%
Fire property resist +1~5%
Wind property resist +1~5%
Poison property resist +1~5%
Holy property resist +1~5%
Dark property resist +1~5%
Ghost property resist +1~5%
Undead property resist +1~5%
Option 3
Armour
Garment
Footwear
MaxHP +150~300
MaxSP +25~50
Formless race resist +3~7
Undead race resist +3~7
Brute race resist +3~7
Plant race resist +3~7
Insect race resist +3~7
Fish race resist +3~7
Demon race resist +3~7
DemiHuman race resist +3~7
Angel race resist +3~7
Dragon race resist +3~7
Option 4
Armour
Garment
Footwear
Cannot be destroyed in battle
Water property
Wind property
Earth property
Fire property
Holy property
Dark property
Blessed Blacksmith Forging
In Zero and Transcendence, Blacksmiths have random options attached to the Lv3 weapons they forge<ref>kRO Zero Website</ref><ref>April 30th Transcendence Maintenance</ref>. They can grant a certain number of options on each weapon, out of a pool of effects as determined by their ranking. The types of options available differs between servers.