Regicide Quest Guide
OSRS Regicide walkthrough, requirements and rewards
Updated September 2026
Regicide opens the elven kingdom of Tirannwn and the ability to wield the dragon halberd. It follows Underground Pass and needs Agility 56 and Crafting 10.
On this page
6 sections
Overview
| Difficulty | Experienced |
| Length | Long |
| Quest points | 3 |
| Series | Elf |
| Start point | Talk to King Lathas on the top floor of Ardougne Castle. |
Requirements
Skill Requirements
| Skill | Level |
|---|---|
| Crafting | 10 (not boostable) |
| Agility | 56 |
Quest Requirements
Other Requirements
- Ability to defeat a level 110 Tyras guard (safespottable)
Items Needed
- 5 coal in the bank (25 recommended)
- Bow and arrows
- 2-3 ropes
- Spade
- Limestone (or pickaxe with Mining 10+)
- Tinderbox and a strip of cloth
- Pestle and mortar
- Gloves, pot and cooked rabbit
Recommended
- Combat level 60 and antipoison
- Stamina potions and weight-reducing gear
- A method to safespot the Tyras guard (Ranged, Magic or halberd)
Walkthrough
Video walkthrough by Slayermusiq1.
- Start the quest. Talk to King Lathas in Ardougne Castle, then travel back through the Underground Pass, lighting arrows to open the gate.
- Reach Isafdar. Traverse the pass, dig the loose dirt, take the swamp shortcut or maze, then exit the cave to the west.
- Meet Lord Iorwerth. Follow the map past the leaf and stick traps to the Iorwerth Camp and talk to Lord Iorwerth.
- Track the elf. Talk to the Elf Tracker, follow the tracks, then kill the level 110 Tyras Guard that spawns at the dense forest.
- Gather bomb materials. Collect 2-3 barrels of coal tar and a piece of sulphur, then talk to Lord Iorwerth and read his book.
- Make the bomb. Use limestone on a furnace, grind quicklime and sulphur with a pestle and mortar, and make a strip of cloth.
- Distil the naphtha. Talk to the chemist in Rimmington, un-note your coal and operate the fractionalising still to make a barrel of naphtha.
- Assassinate the king. Build the barrel bomb, return through the Underground Pass and use it to complete the quest.
Rewards
- 3 Quest points
- 13,750 Agility experience
- 15,000 coins
- Access to Tirannwn and the Arandar overpass
- Ability to wield the dragon halberd
- Access to Iorwerth camp and Zul-Andra teleport scrolls
Related Quests
Related Tools
Regicide FAQ
01What are the Regicide requirements?
Underground Pass, Crafting 10 (not boostable) and Agility 56 (boostable), plus the ability to kill a level 110 Tyras guard.
02How do I make the barrel bomb?
Use quicklime and ground sulphur on a barrel of naphtha, then use a strip of cloth on the unfinished bomb.
03What does Regicide unlock?
Tirannwn, the Arandar overpass, the dragon halberd, and several teleport scrolls including Iorwerth camp and Zul-Andra.
04How long does Regicide take?
It is a Long quest, largely because you must travel back through the Underground Pass and across Isafdar's traps.
05What are the Regicide rewards?
3 Quest points, 13,750 Agility experience, 15,000 coins, access to Tirannwn and the Arandar overpass, and the ability to wield the dragon halberd.
06How do I cross Isafdar in Regicide?
Follow the map carefully to avoid the leaf and stick traps, and bring antipoison, weight-reducing gear and stamina potions for the long trek.
07Any ironman tips for Regicide?
Ironmen can bring Iban's staff or its upgraded form and recharge it for free at the well during the Underground Pass section.
Next Quest
See every quest in the game, or find the next one on the optimal route.
Darren started playing the original RuneScape 2 back in the day and came back when Old School RuneScape launched. He's played on and off over the years and built OSRSToolkit to give players a single place to find reliable tools, calculators, and guides — all informed by real in-game experience.