Doorway Tactics: How to Survive Multi-Room Scenarios

If your group often feels overwhelmed the moment a door opens, this article is for you. Doorway tactics are one of the single most important skills for surviving harder scenarios, and they apply across Gloomhaven, Jaws of the Lion, and Frosthaven.

This guide is spoiler-free and focuses on universal principles you can use in any scenario.

Why Doorways Are So Dangerous

Opening a door does three things at once:

1. Reveals new enemies
2. Reveals monster ability cards for new monster types
3. Expands the battlefield

Most losses happen because parties treat door openings like normal movement — instead of recognizing them as major tempo events.

The goal of doorway tactics is simple:

Control how many enemies can reach you, and when.

Core Principle: Never Fight Two Rooms at Once

This is the #1 rule.

If enemies from two rooms can attack you in the same round, you are almost always losing value:

• You take more attacks
• You burn cards early
• Initiative becomes unpredictable

Exception: You are intentionally sprinting to an objective

The “Door Turn” — Why Timing Matters

Think of opening a door as its own phase of the scenario.

A good door turn:

• Happens when the current room is mostly cleared
• Occurs on a round with controlled initiative
• Uses minimal movement beyond the doorway
• Ends with your party holding position

A bad door turn:

• Happens mid-fight
• Is opened late in initiative
• Leaves multiple characters exposed
• Allows enemies to swarm immediately

Who Should Open the Door?

In most parties, the door opener should be:

• The tankiest character
• Someone with Shield, Retaliate, or high HP
• A character who can survive multiple attacks

Common good door openers:

• Red Guard
• Brute-style characters
• High-HP melee characters

Common bad door openers:

• Squishy supports
• Low-HP ranged characters
• Anyone who must stand still to function

Initiative Control at Doorways

The Ideal Door Opening Round

• Door opener goes early
• Everyone else goes late

Why this works:

• Early opener reveals the room
• Monsters don’t act yet
• Allies react with full information
• Enemies waste movement trying to reach you

This often causes:

• Ranged enemies to move instead of attack
• Melee enemies to bottleneck
• Monster turns to lose value immediately

The Worst Door Opening Pattern

• Door is opened late
• Monsters act immediately
• Enemies attack before you can respond
• You take unplanned damage

This is how parties get wiped.

Hold the Door — Don’t Rush In

A very common mistake is stepping fully into the room after opening the door.

Instead:

• Open the door
• Step one hex in (or not at all)
• Let enemies come to you

Why this is powerful:

• Limits how many enemies can attack
• Preserves choke points
• Maximizes Shield, Retaliate, and control effects

Doorways are natural funnels — use them.

Use the Doorway as a Choke Point

When enemies must pass through a doorway:

• Only a few can attack at once
• Melee enemies stack up uselessly
• Ranged enemies often reposition instead of attacking

This dramatically reduces incoming damage and makes:

• Healing more efficient
• Retaliation stronger
• Control effects more impactful

When It’s OK to Break Doorway Rules

Doorway tactics are strong — but not absolute.

It can be correct to push in when:

• The scenario is a race or escape
• Enemies spawn infinitely behind you
• You must reach an objective quickly
• The room contains few enemies but dangerous terrain

The key difference:

Breaking doorway discipline should be a conscious decision, not a mistake.

Common Doorway Mistakes (And Why They Hurt)

How Doorway Tactics Change Late-Game Difficulty

As scenarios scale up:

• Enemies hit harder
• Elite abilities become swingier
• Mistakes compound faster

Doorway discipline:

• Reduces randomness
• Stabilizes damage intake
• Gives your party time to adapt

Many “hard” scenarios become manageable once doorway play improves.

Final Takeaway

Doorways are not just transitions — they are control points.

If you remember nothing else, remember this:

Open doors deliberately, control initiative, and let enemies come to you.

Mastering doorway tactics will immediately improve your win rate across every multi-room scenario in Gloomhaven and Jaws of the Lion.