What is Monster Stone?
Its in-game description is one sentence: 'Teleport to a monster nest'. Monster Stone takes you to the Monster Stone dungeon. The dungeon has 3 different maps and the monsters inside appear according to your level range.
When you use the stone you have two choices: enter the dungeon, or take EXP without entering. If you pick EXP, the game asks 'Do you wish to receive EXP using Monster Stone?' and shows how much EXP you will get.
Inside there are monsters and a boss. An NPC that used to hand out Monster Stones in the game says it plainly: 'Hunt the boss and good luck obtaining the item.' That item is an Old accessory.
How do you use Monster Stone?
- Put the Monster Stone from your inventory on your skill bar.
- Click it. Each use takes one stone.
- If you choose to enter, you are teleported to one of the three maps for your level. If you don't want to enter, choose EXP.
- In a party, only the party leader can use the stone.
- You can't use it while dead; the game says 'Monster's Stone cannot be used in death.'
- Inside, kill the monsters and the boss. The monsters drop the
Nest Scrap and
Scrap of Steel you need to renew Old accessories, and the boss can drop an Old accessory.
Can you sell Monster Stone?
- No. Monster Stone is an untradeable item.
- You can't put it on a merchant, sell it to an NPC or trade it to another player.
- So it has no market price. The Farm Calculator shows 'Not sellable' in the price box and leaves Monster Stone out of the income.
- The stone's value is in what you get from it: Old accessories, Nest Scrap, Scrap of Steel and EXP.
Where does Monster Stone come from?
- It drops from monsters. It's in 33 of the 43 slots in the Farm Calculator; the best spots are in the table below.
- 52 achievements reward 1 Monster Stone. The easiest: [Level 60] Exciting Place, [Level 70] With You and Me and [Level 80] To the Castle (reach level 60, 70 and 80), Getting Ready (defeat 10 enemy players), Step by Step (defeat 1,000 monsters in Ronark Land).
- The minion achievements in Under the Castle give Monster Stone too; for example defeating 100 [Elite] Safahee Heavy Calvary.
- It has also been an event reward: in November 2021 in the 40 Golden Yut exchange, in September 2022 from the Leftover Bone creature.
- Solo Monster Stone also appears in the Narki pools: it's on the list in all three of the Middle Class, High & Rebirth and Unique categories.
Where Monster Stone drops most
| Zone | MS per hour | Per 1 MS |
|---|---|---|
| Eslant - Barbarian Leader | 1.5 | 0.7 h |
| Eslant - Apostle of Cold | 1.2 | 0.8 h |
| Eslant - Dark Knight | 1 | 1 h |
| Eslant - Giant Golem | 0.8 | 1.3 h |
| Lufer - Grell | 0.8 | 1.3 h |
| Lufer - Harpy | 0.7 | 1.4 h |
| Lufer - Dragon Tooth Skeleton (DTS) | 0.6 | 1.7 h |
| Lufer - Konga | 0.6 | 1.7 h |
| Lufer - Hounga | 0.5 | 2 h |
| Eslant - Raven Harpy | 0.25 | 4 h |
| Eslant - Paramun | 0.2 | 5 h |
| Lufer - Uruk Blade | 0.1 | 10 h |
| Delos - Burning Skeleton / Phantom | 0.1 | 10 h |
| CZ - Apostle of Cold | 0.08 | 12.5 h |
| Lufer - Uruk Hai | 0.08 | 12.5 h |
The rest of the list is between 0.07 and 0.01. The lowest is Lufer - Hornet: 0.01, one every 100 hours.
Monster Stone by zone
- Lufer: Monster Stone in all 13 of 13 slots. But the slots' hourly net is low; the highest is Uruk Blade with 5,423,833 coins.
- Eslant: in 11 of 13 slots and all the highest rates are here. Barbarian Leader 1.5, Apostle of Cold 1.2, Dark Knight 1.0.
- CZ (Ronark Land): in 7 of 10 slots but the highest is Apostle of Cold with 0.08. You don't go to CZ for Monster Stone.
- Delos: in 2 of 7 slots. Burning Skeleton / Phantom 0.1 and Cave Leech 0.03.
Don't pick a slot because the MS rate is high
Three of Monster Stone's four highest rates are in Eslant, but half of the high-rate slots are in Lufer. The difference between them isn't in MS, it's in the rest of the slot.
Eslant - Dark Knight gives 1 Monster Stone per hour and leaves 17,163,333 coins net per hour. Lufer - Konga gives 0.6 Monster Stone per hour, but its income doesn't cover the cost; its hourly net is minus 680,667 coins.
Since Monster Stone can't be sold, it doesn't close that gap. Collecting stones at Konga costs you coins; collecting the same stones at Dark Knight earns you coins.
Hourly income of the Monster Stone slots
| Zone | MS per hour | Hourly gross | Hourly net |
|---|---|---|---|
| Eslant - Dark Knight | 1 | 20,135,000 | 17,163,333 |
| Eslant - Giant Golem | 0.8 | 19,350,000 | 16,378,333 |
| Eslant - Apostle of Cold | 1.2 | 11,475,000 | 8,503,333 |
| Eslant - Barbarian Leader | 1.5 | 11,248,000 | 8,276,333 |
| Lufer - Uruk Blade | 0.1 | 8,395,500 | 5,423,833 |
| Lufer - Harpy | 0.7 | 5,626,000 | 2,654,333 |
| Lufer - Dragon Tooth Skeleton (DTS) | 0.6 | 4,413,000 | 1,441,333 |
| Lufer - Grell | 0.8 | 3,700,000 | 728,333 |
| Lufer - Konga | 0.6 | 2,291,000 | −680,667 |
| Lufer - Hounga | 0.5 | 2,227,000 | −744,667 |
Monster Stone can't be sold, so it isn't in the gross or the net; this is the slot's full coin income. Net = gross minus 2,971,667 coins hourly cost.
The level penalty hurts more with Monster Stone
Most of Monster Stone's good slots are on low-level monsters. Lufer - Konga is level 49, Lufer - Hounga 55, Lufer - Grell 60, Lufer - Dragon Tooth Skeleton 65.
If your character is 8 or more levels above the monster, the monster gives you no boxes or coins. A character reaching level 68 can't get a single Monster Stone from Grell.
That's why in MS farming the target slot changes with your character's level. As your level rises the Lufer side closes and the Eslant side opens.
At which level the penalty starts in the MS slots
| Zone | Mob level | Char level where penalty starts |
|---|---|---|
| Lufer - Konga | 49 | 57 |
| Lufer - Hounga | 55 | 63 |
| Delos - Burning Skeleton / Phantom | 57 | 65 |
| Lufer - Grell | 60 | 68 |
| Lufer - Dragon Tooth Skeleton (DTS) | 65 | 73 |
| Lufer - Harpy | 70 | 78 |
| Lufer - Uruk Blade | 70 | 78 |
| Eslant - Apostle of Cold | 70 | 78 |
| Eslant - Dark Knight | 70 | 78 |
| CZ - Apostle of Cold | 70 | 78 |
| Eslant - Barbarian Leader | 75 | 83 |
| Eslant - Raven Harpy | 80 | 88 |
| Eslant - Paramun | 90 | 98 |
| Eslant - Giant Golem | 110 | 118 |
Mob levels are the calculator's defaults. If yours differ, fix them in the Mob level box in the Farm Calculator; the math updates instantly.
What are Old accessories for?
Old accessories are old versions of accessories whose name starts with 'Old': 
You can wear an Old accessory but you can't upgrade it. The normal 
Old accessories can be sold; they have listings on the market and each one's current price is on its own page. Besides the Monster Stone boss, they also come from boxes such as the 
Turning Old accessories into a new one: [Jeweller] Juel
| Material | Amount | Where from |
|---|---|---|
| Identical Old accessory | 3 | Monster Stone boss, by chance |
| Nest Scrap | 5 | Monsters in the Monster Stone dungeon |
| Scrap of Steel | 50 | Monsters in the Monster Stone dungeon |
| Soft Stone |
1 | Juel, 1,000,000 Noah |
Juel stands in Moradon (920, 643). You put the materials in through the 'Assemble' menu and combine them; you buy the Soft Stone from the 'Alchemy Stone Sales' menu. In Juel's own words: the result isn't guaranteed and failure is more likely than success.
Before you start MS farming
- Don't expect coins from Monster Stone, it can't be sold. Pick the slot by its income apart from MS.
- Check the level gap. Most Lufer slots are below level 70 and close fast.
- Don't do a short test. In a slot with a 0.08 rate it's normal to see no MS in an hour.
- If you'll use the stones with a party, remember: in a party only the leader can use the stone.