Slay the Spire 2 — Multiplayer Co-op Guide

Everything you need to know about Slay the Spire 2's 4-player co-op mode: how it works, max players, best team compositions, and tips for climbing together.

How to Start a Co-op Game

  1. 1.Select Multiplayer from the main menu
  2. 2.One player chooses Host, others choose Join
  3. 3.Invite friends via Steam Overlay (Shift+Tab)
  4. 4.Each player selects their character (can be the same class)
  5. 5.The run starts once all players are ready!

Frequently Asked Questions

How many players can play Slay the Spire 2 co-op?

Up to 4 players can play together in co-op mode. You can also play with 2 or 3 players — the game scales enemy health based on party size.

How does multiplayer work in Slay the Spire 2?

Each player controls their own character with their own deck. Players share the same map and vote democratically on which path to take. Combat is simultaneous — all players play cards at the same time against scaled enemies.

Do players share a deck in co-op?

No. Each player has their own independent deck. However, players share relics through a draft system and can coordinate card picks to build team synergies.

Can you play Slay the Spire 2 co-op with different characters?

Yes! Each player can choose any of the 5 available characters (Ironclad, Silent, Defect, Regent, Necrobinder). You can even have multiple players using the same character.

Is there cross-play in Slay the Spire 2?

Currently, Slay the Spire 2 is only available on PC/Steam, so cross-play is not applicable. The game supports online multiplayer through Steam.

How do you revive dead teammates?

Dead players can be revived at specific Campfire/Rest Site events. If a player dies, they're out until the team reaches a Rest Site with a revival option.

Do enemies scale in multiplayer?

Yes. Enemy health scales based on the number of players in your party. More players = tougher enemies, but you also have more combined damage output.

Are there multiplayer-exclusive cards?

Yes! Slay the Spire 2 includes co-op exclusive cards designed specifically for team play, such as cards that buff allies or trigger effects based on teammate actions.

Best Team Compositions

Balanced Squad

IroncladSilentDefect

Tank + DPS + Support. Ironclad absorbs damage, Silent applies debuffs, Defect provides orb scaling.

Summon Army

NecrobinderNecrobinderRegent

Double Necrobinder floods the board with Osty summons. Regent provides Star-based support and scaling.

Poison Stack

SilentSilentIronclad

Double Silent stacks Poison insanely fast. Ironclad tanks while Poison does the work.

Orb Overload

DefectDefectRegentSilent

Double Defect channels massive orbs. Regent and Silent provide utility and debuffs.

Co-op Strategy Tips

▸Communicate before picking cards — avoid overlapping strategies that compete for the same relics.
▸Designate one player as the 'tank' (usually Ironclad) to absorb damage while others focus on scaling.
▸Vote together on map paths — prioritize elites early if your team comp is strong.
▸Share relic drafts strategically — give scaling relics to your carry, defensive relics to your tank.
▸Debuffs are shared across the team — Vulnerable and Weak affect all players, so cleanse them ASAP.
▸Dead players lose their turn — avoid risky plays that could leave your team short-handed.
▸Co-op exclusive cards are often stronger than solo cards — prioritize them in card rewards.

Key Differences from Solo Play

What's Different

  • • Enemy health scales with player count
  • • Map paths are voted on democratically
  • • Relics are drafted instead of auto-picked
  • • Debuffs affect all players simultaneously
  • • Dead players can be revived at Rest Sites

What's the Same

  • • Each player has their own deck
  • • Card rewards are individual (not shared)
  • • Energy and HP are separate per player
  • • Same Acts, bosses, and events
  • • Same win condition (defeat final boss)

🚀 Try Our Co-op Synergy Builder

Planning your team composition? Use our interactive tool to find the best character combinations, card synergies, and relic recommendations for your co-op run.

Open Synergy Builder →

Related guides

All ClassesClass Tier ListAll Cards