Setup, a scenario, teardown and the full campaign — honest numbers, not box-back numbers.
The box says 60 to 120 minutes. That's the scenario, and only the scenario.
It doesn't include finding the map tiles, sorting the monster standees,
reading the scenario text, levelling up, or putting it all away — and those
are where evenings actually go.
🎯
Quick Answer
Budget a full evening per scenario: roughly 15–30 minutes of setup, 60–120 minutes of play, and 15 minutes of packing up. The full Gloomhaven campaign runs well past a hundred hours.
Where an Evening Really Goes
A realistic Gloomhaven session
Phase
Gloomhaven
Jaws of the Lion
Getting the box out and open
5 min
2 min
Map tiles, monsters, tokens
15–30 min
Minimal — printed maps
Character setup and card selection
5–15 min
5–10 min
Playing the scenario
60–120 min
30–90 min
Levelling, shopping, events
10–20 min
5–15 min
Packing away
10–20 min
5 min
Total
~2.5–3.5 hours
~1.5–2 hours
The Full Campaign
Gloomhaven has 95+ scenarios, though no campaign path visits all of them —
the map branches, and choices close some routes off. A typical playthrough
covers a large fraction of them.
Realistically, that's well over a hundred hours of play, spread across a year
or more of regular sessions for most groups. Jaws of the Lion's 25 scenarios
are a far more achievable tens of hours, which is a genuine argument in its
favour — see
the comparison.
What Makes Sessions Longer
Player count. Four players means four hands to plan and four turns per round. Two-player scenarios move dramatically faster.
Analysis paralysis. Choosing two cards from a hand of eleven, with initiative mattering, is exactly the kind of decision that eats five minutes if you let it.
Rules lookups. Common early on, and each one stops the table.
Setup from scratch every time. If the box goes away fully sorted each session, you pay the sorting cost twice.
How to Get It Down
BIGGEST WIN
Sort the box properly, once
Monster standees, ability decks and tokens each in their own labelled home turns a 25-minute setup into a 10-minute one — every session, forever. It's covered in taming the box.
EASY WIN
Set up while people arrive
One person reads the scenario and builds the map while the others sort characters. Setup is highly parallelisable and almost nobody does it that way.
EASY WIN
Use a companion app for the town phase
Levelling, shopping and campaign bookkeeping are the least interesting minutes of the evening. Handing them to an app reclaims a solid chunk of every session.
EASY WIN
Leave it set up if you can
A spare table changes the game entirely. If a scenario can stay out between sessions, you can play in ninety-minute chunks instead of needing a whole evening.
Should the Time Commitment Put You Off?
Only if your group is unstable. Gloomhaven rewards consistency — the same four
people, meeting regularly, developing characters over months. If that
describes your group, the hundred hours are the point rather than the cost.
If it doesn't, start with Jaws of the Lion. A 25-scenario campaign you finish
is worth more than a 95-scenario campaign that stops at scenario nine.