23gp
18gp
5gp
+5gp
—
—
Price history
1 points · hover for detail
- 30D low
- 18
- 30D high
- 23
- Volatility
- 24.4%
Flip calculator
Includes the 2% Grand Exchange tax
+5gp
+5 per item · +27.78% ROI
- Capital required
- 18 gp
- Gross revenue
- 23 gp
- GE tax (2%, 0/item)
- − 0 gp
- Break-even sell
- 18 gp
Item data
- High alchemy
- 18 gp21.7% below market
- Low alchemy
- 12 gp
- Shop value
- 30 gp
- Weight
- 0 kg
- Stack / note
- Stackable · not noteable
- Released
- Sep 9, 2002
About Swamp paste
The Swamp paste is a members-only item in Old School RuneScape.
"A tar-like substance mixed with flour and warmed"
Over the last 30 days it traded between 17 and 29 gp on the Grand Exchange, averaging 23 gp. About 3,033,133 units changed hands per day. The price is down 8.7% across that window. The Grand Exchange buy limit is 13,000 every 4 hours.
Casting High Level Alchemy returns 18 gp, which is 21.7% below the 30-day average price, so alching a bought one loses money.
How to get Swamp paste
30 monsters drop Swamp paste, most commonly Black Chest (black) (Always), Black Chest (brown) (Always) and Black Chest (crimson) (Always). 7 shops sell it, including Razmire Builders Merchants and Salvager Overlook General Store.
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Black Chest (black) | Always | 25–40 |
| Black Chest (brown) | Always | 25–40 |
| Black Chest (crimson) | Always | 25–40 |
| Black Chest (purple) | Always | 25–40 |
| Black Chest (red) | Always | 25–40 |
| Bronze Chest (black) | Always | 5–10 |
| Bronze Chest (brown) | Always | 5–10 |
| Bronze Chest (crimson) | Always | 5–10 |
| Bronze Chest (purple) | Always | 5–10 |
| Bronze Chest (red) | Always | 5–10 |
| Gold Chest (black) | Always | 40–70 |
| Gold Chest (brown) | Always | 40–70 |
| Gold Chest (crimson) | Always | 40–70 |
| Gold Chest (purple) | Always | 40–70 |
| Gold Chest (red) | Always | 40–70 |
| Repair Locker | Always | 1 |
| Silver Chest (black) | Always | 25–40 |
| Silver Chest (brown) | Always | 25–40 |
| Silver Chest (crimson) | Always | 25–40 |
| Silver Chest (purple) | Always | 25–40 |
10 further monsters drop it less commonly.
Sold in shops
| Shop | Price | Stock |
|---|---|---|
| Razmire Builders Merchants | 31 gp | 1000 |
| Salvager Overlook General Store | 39 gp | 10 |
| Seb's Shipyard Supplies | 39 gp | 2500 |
| Port Roberts General Store | 39 gp | 10 |
| Khazard General Store | 42 gp | 5000 |
| Rasolo the Wandering Merchant | 60 gp | 1 |
| Trader Stan's Trading Post | 75 gp | 30 |
Swamp paste price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 22 | 17 | 28 | 42,731,765 |
| September 2026 | 23 | 16 | 29 | 78,193,633 |
| August 2026 | 19 | 15 | 24 | 100,407,678 |
| July 2026 | 22 | 14 | 26 | 112,650,508 |
| June 202621d | 23 | 14 | 26 | 49,097,549 |
| May 20262d | 23 | 21 | 25 | 3,612,985 |
| April 20261d | 25 | 25 | 25 | 1,494,545 |
| March 2026 | 16 | 15 | 19 | 27,147,956 |
| February 2026 | 17 | 12 | 22 | 2,521,954 |
| January 2026 | 24 | 18 | 30 | 17,850 |
Across 10 months of recorded prices Swamp paste ranged from 12 gp in February 2026 to 30 gp in January 2026, measured over 218 trading days.
The 30-day average of 23 gp sits around the middle of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.
