Brothers in Arms in The Witcher 3: Every Ally for Kaer Morhen and the Full Crew Achievement
Witcher 3 Brothers in Arms guide for Novigrad, Velen, Skellige and Nilfgaard: who you can recruit for Kaer Morhen, what each ally needs, and the Full Crew checklist.
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Updated October 2026. Brothers in Arms is the set of four main quests where Geralt gathers allies for the Battle of Kaer Morhen. You get one for each region: Novigrad, Velen, Skellige and Nilfgaard. Who shows up depends on side quests you finished earlier, so it pays to know the requirements before you trigger the battle.
Quick answer
Unlocks: after Va Fail, Elaine, once you know where Ciri is. Suggested level 22.
Allies who can fight: Triss, Zoltan, Roche and Ves (Novigrad), Keira Metz (Velen), Ermion, Hjalmar and possibly Folan and Vigi the Loon (Skellige). Letho is an optional extra.
Biggest traps: finish A Dangerous Game before asking Zoltan, keep Ves alive in An Eye for an Eye, send Keira to Kaer Morhen, and make sure someone is crowned in Skellige.
Full Crew achievement: recruit every possible ally.
Do these before you ask anyone: A Dangerous Game fails the moment you ask Zoltan for help, and the Velen part fails if Keira does not go to Kaer Morhen.
Brothers in Arms: Novigrad
| Ally | How to recruit | Joins the battle? |
|---|---|---|
| Triss Merigold | Always comes. Help her in Now or Never first so she joins on her own terms. | Yes |
| Zoltan Chivay | Just ask him. Finish A Dangerous Game first or it fails. | Yes (also an amateur armorer) |
| Vernon Roche and Ves | Complete An Eye for an Eye with Ves surviving, then talk to Roche. | Yes |
| Sigismund Dijkstra | Won't fight, but gives a "fat purse" of crowns and items if you got his treasure info from Menge in Count Reuven's Treasure. | No |
Brothers in Arms: Velen
Velen has one ally: Keira Metz. You need to have finished her storyline: An Invitation from Keira Metz, A Towerful of Mice, A Favor for a Friend and For the Advancement of Learning. In the last one, be friendly and convince her to go to Kaer Morhen. If she goes elsewhere or dies, this quest fails.
Optional: Letho can also join if he survived The Witcher 2 and you complete Ghosts of the Past. He isn't needed for Full Crew.
Brothers in Arms: Skellige
| Ally | How to recruit | Joins the battle? |
|---|---|---|
| Ermion | Agrees straight away. | Yes |
| Crach an Craite | After Possession and The Lord of Undvik. Can't send men, but gives you the Winter's Blade sword. | No |
| Hjalmar | Finish the throne questline through Coronation. He feels indebted and joins either way. | Yes |
| Cerys | Promises help after the throne is decided, but is too busy ruling to come. | No |
| Folan, Vigi the Loon | Come with Hjalmar if you saved them in The Lord of Undvik. | Yes |
Important: someone has to be crowned. If King's Gambit ends with Hjalmar and Cerys both investigating on their own, Coronation can't start and this part gets stuck.
Brothers in Arms: Nilfgaard
Go to the Royal Palace in Vizima and ask Emperor Emhyr for help. He offers soldiers only if Morvran Voorhis leads them; Geralt refuses and leaves, which ends the quest. Nothing you do changes this.
Full Crew Achievement Checklist
| Region | You need |
|---|---|
| Novigrad | Triss (help in Now or Never), Zoltan (after A Dangerous Game), Roche and Ves (Ves alive in An Eye for an Eye) |
| Velen | Keira Metz sent to Kaer Morhen in For the Advancement of Learning |
| Skellige | Ermion, plus Hjalmar after Coronation (Possession and The Lord of Undvik done) |
Earlier choices also matter: if you want Triss on your side romantically, see the kiss in A Matter of Life and Death.
Video: All Allies at Kaer Morhen
Frequently Asked Questions
QWho can you recruit for the Battle of Kaer Morhen?
Triss, Zoltan, Roche and Ves, Keira Metz, Ermion and Hjalmar (with Folan and Vigi if saved). Letho can join separately. Dijkstra and Crach give gifts instead of fighting.
QHow do you get the Full Crew achievement?
Recruit every possible ally: finish A Dangerous Game, An Eye for an Eye (Ves alive), Keira's quests (she goes to Kaer Morhen) and the Skellige throne questline before asking.
QWhy did A Dangerous Game fail?
You asked Zoltan for help in Brothers in Arms before finishing it. Zoltan leaves Novigrad as soon as you ask.
QCan Emhyr help at Kaer Morhen?
No. He only offers troops led by Morvran Voorhis and Geralt always refuses.
QDoes Dijkstra join the battle?
No, but he gives you a purse of crowns and items if you learned about his treasure from Menge.
Quest details checked against the Witcher Wiki in October 2026.
Kai Mercer covers game news, free games, release calendars and guides for xGamerss.
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