5gp
4gp
1gp
+1gp
—
—
Price history
1 points · hover for detail
Volume · units traded
- 30D low
- 4
- 30D high
- 5
- Volatility
- 22.2%
Flip calculator
Includes the 2% Grand Exchange tax
+1gp
+1 per item · +25.00% ROI
- Capital required
- 4 gp
- Gross revenue
- 5 gp
- GE tax (2%, 0/item)
- − 0 gp
- Break-even sell
- 4 gp
Item data
- High alchemy
- 1 gp80.0% below market
- Low alchemy
- 1 gp
- Shop value
- 1 gp
- Weight
- 0 kg
- Stack / note
- Stackable · not noteable
- Released
- Sep 9, 2002
About Swamp tar
The Swamp tar is a members-only item in Old School RuneScape.
"A foul smelling thick tar-like substance"
Over the last 30 days it traded between 4 and 4 gp on the Grand Exchange, averaging 4 gp. About 4,400,744 units changed hands per day. The Grand Exchange buy limit is 13,000 every 4 hours.
Casting High Level Alchemy returns 1 gp, which is 75.0% below the 30-day average price, so alching a bought one loses money.
How to get Swamp tar
14 monsters drop Swamp tar, most commonly Cave slime (Always), Tar barrel (Always) and Tar Monster (1/3).
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Cave slime | Always | 1–6 |
| Tar barrel | Always | 1 |
| Tar Monster | 1/3 | 10 |
| Lunar Chest | 4/30 | 79–119 |
| Mutated Tortoise | 6/64 | 40–60 |
| Warped Tortoise | 6/64 | 40–60 |
| Mutated Terrorbird | 5/64 | 40–60 |
| Warped Terrorbird | 5/64 | 40–60 |
| Mummy (Ancient Pyramid) | 30/513 | 1 |
| Pygmy kraken | 6/108 | 10–25 |
| Cave goblin (Dorgesh-Kaan) | 1/20 | 1 |
| Monumental chest | 1/30 | 500–600 |
| Zulrah | 5/249 | 1000 |
| Cave kraken | 4/200 | 60 |
Recipes
Where this item appears in crafting and processing.
Used to make
- 1× Bullseye lantern from 1× Bullseye lantern (empty), 1× Swamp tar
- 15× Guam tar from 15× Swamp tar, 1× Guam leaf
- 15× Guam tar from 15× Swamp tar, 1× Ground guam
- 15× Harralander tar from 15× Swamp tar, 1× Harralander
- 15× Marrentill tar from 15× Swamp tar, 1× Marrentill
- 15× Tarromin tar from 15× Swamp tar, 1× Tarromin
Swamp tar price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 4 | 4 | 4 | 64,077,775 |
| September 2026 | 4 | 4 | 4 | 111,454,079 |
| August 2026 | 4 | 3 | 4 | 135,001,714 |
| July 2026 | 4 | 2 | 4 | 162,527,268 |
| June 202621d | 4 | 3 | 4 | 64,430,993 |
| May 20262d | 4 | 4 | 4 | 6,652,974 |
| April 20261d | 4 | 4 | 4 | 1,918,210 |
| March 2026 | 3 | 2 | 3 | 35,417,205 |
| February 2026 | 3 | 2 | 3 | 3,134,197 |
| January 2026 | 2 | 2 | 3 | 17,856 |
Across 10 months of recorded prices Swamp tar ranged from 2 gp in January 2026 to 4 gp in April 2026, measured over 218 trading days.
The 30-day average of 4 gp sits in the upper third of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.
