October DealsAmazon USOctober deal check: compare before you payAmazon US: current deals, useful picks and tech finds.Check DealsClean PCRecommendedOne scan can reveal what keeps slowing WindowsLook for cleanup and repair opportunities.Run ScanOctober DealsAmazon USDeal season is back - check today's better picksAmazon US: current deals, useful picks and tech finds.See Picks×
Skip to content
VGSources
Blog

Starscourge Radahn Location and Boss Fight Guide: How to Start the Festival

Starscourge Radahn is fought at Redmane Castle after the festival is active. See the Ranni-related and Altus Plateau routes to start it, plus the route to the arena and the DLC requirement.
Length2 min Posted Quest giverVGSources Team
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Starscourge Radahn is reached through Redmane Castle in southeastern Caelid, but you must activate the Radahn Festival before the fight is available. You can trigger the festival through Ranni-related quest progress or by entering Altus Plateau and resting at a Site of Grace there. If you are playing Shadow of the Erdtree, Radahn is one of two required boss defeats for access to the Realm of Shadow; Mohg is the other.

Where is Starscourge Radahn?

Radahn’s arena is reached through Redmane Castle in southeastern Caelid. The encounter becomes accessible when the Radahn Festival is active. Bandai Namco’s guide to entering the Realm of Shadow outlines three ways to activate it.

How to start the Radahn Festival

Choose the route that best matches your progress. The Altus Plateau route is the one Bandai Namco explicitly says works regardless of quest completion.

Route What to do Prerequisite
Ranni and Blaidd quest progression Continue their questline until Sorceress Sellen tells you Radahn must be defeated to reach Nokron. Progress far enough in the questline to receive Sellen’s instruction.
Ranni quest with Jerren and Iji Start Ranni’s questline, then speak with Witch-Hunter Jerren and Blacksmith Iji to initiate the festival. Follow the stated Ranni quest conditions; simply meeting either character at an unrelated point is not established as sufficient.
Altus Plateau Enter Altus Plateau and rest at any Site of Grace in the region, then return to Redmane Castle. No quest completion is required, according to Bandai Namco.

How to reach the Radahn fight

  1. Travel to Redmane Castle in Caelid after activating the festival.
  2. Speak with Witch-Hunter Jerren. GameSpot reports that exhausting his dialogue unlocks the elevator route to Radahn.
  3. Follow the opened route toward the lift and arena portal to enter the fight.

If the castle does not lead to the encounter, check whether the festival is active and whether you have spoken to Jerren. Bandai Namco’s access guide describes the festival routes; GameSpot provides secondary confirmation of the Jerren-and-elevator sequence: How to Beat Starscourge Radahn in Elden Ring.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
#1 Best Overall
Elden Ring (PS5) (European Version)
  • Collaborating with George R.R. Martin to create the ELDEN RING mythos has been a genuinely delightful experience and a source of wonderful inspiration. The team is working hard to ensure that the world of ELDEN RING will be a fascinating place for players to explore, filled with peril and wonder from its furthest reaches to its lowest depths. This is a FromSoftware title through and through, rich in fantasy and RPG action. We sincerely hope you look forward to it.
  • Building the world of ELDEN RING with Miyazaki-san and his team was a treat! The graphics, mythos, and action-RPG gameplay will deliver an unforgettable experience. I can’t wait for people to see what ELDEN RING has in store for them.” Said George R.R. Martin.

Should you use the festival summons?

Festival summons are an available option, not a requirement. Xbox Wire notes that players can fight Radahn with or without the many summons available during the festival. Choose whether to use them based on how you prefer to approach the encounter; this guide does not prescribe a build, level, or damage strategy.

Is Radahn required for Shadow of the Erdtree?

Yes. To enter the Realm of Shadow in Shadow of the Erdtree, you must defeat both Starscourge Radahn and Mohg. Defeating Radahn alone does not satisfy the expansion’s two-boss requirement, as stated by PlayStation’s expansion page and Bandai Namco’s access guide.

Rank #3
Elden Ring: Nightreign - Seekers Edition /PS5
  • Elden Ring: Nightreign - Seekers Edition /PS5
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

What patch information matters?

Bandai Namco’s Update 1.03 notes document a historical fix for a bug that had unintentionally weakened some of Radahn’s attacks. That note describes an earlier balance correction; it does not establish the current patch number or provide a current numerical profile of the fight. The Patch 1.05 notes also record a fix for an issue where some players could not move from the map to a Site of Grace after defeating Radahn. It is patch history, not evidence that this is a current widespread problem.

Quick Recap

Bestseller No. 1
SaleBestseller No. 2
Bestseller No. 3
Elden Ring: Nightreign - Seekers Edition /PS5
Elden Ring: Nightreign - Seekers Edition /PS5
Elden Ring: Nightreign - Seekers Edition /PS5
$43.95
SaleBestseller No. 5
Best Value
Sale
Elden Ring - PlayStation 5
  • ELDEN RING, developed by FromSoftware Inc. and produced by BANDAI NAMCO Entertainment Inc., is a fantasy action-RPG and FromSoftware's largest game to date, set within a world full of mystery and peril
  • Journey through the Lands Between, a new fantasy world created by Hidetaka Miyazaki, creator of the influential DARK SOULS video game series, and George R. R. Martin, author of The New York Times best-selling fantasy series, A Song of Ice and Fire
  • Traverse the breathtaking world on foot or on horseback, alone or online with other players, and fully immerse yourself in the grassy plains, suffocating swamps, spiraling mountains, and foreboding castles
  • Create your character in FromSoftware’s refi ned action-RPG and defi ne your playstyle by experimenting with a wide variety of weapons, magical abilities, and skills found throughout the world
  • Charge into battle, pick off enemies one-by-one using stealth, or even call upon allies for aid - many options are at your disposal as you decide how to approach exploration and combat

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Leave a Reply

Your email address will not be published. Required fields are marked *

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

More quests from Patch Notes

  1. How To Create Custom Stickers & Shoutouts In Monster Hunter WildsMonster Hunter WildsBlog20min
  2. How to Get XL Gogoat in Pokemon Legends Z-A (An Extra-Large Gogoat)Pokemon Legends Z-ABlog20min
  3. How to Get Rotting Lightbringer in Diablo 4Diablo 4Blog17min
Recommended PC Tool
Recommended PC Tool
PC Slower Than It Used to Be?Free scan - under a minute
Crashes, No Sound, or Screen Glitches?Free driver scan

Two free Windows tools

One Free Minute Could Fix That PC

Before you go - each of these free tools takes about a minute and tackles what quietly slows a Windows PC down.

Special offer. View Outbyte info, uninstall instructions, EULA, and Privacy Policy.