Best Cooperative Board Games for Large Groups

Cooperative board games have a problem at large player counts. Most of the best ones (Pandemic, Spirit Island, Arkham Horror) cap at 4 or 5 players. Go above that and the experience usually falls apart because one or two dominant players end up making all the decisions while everyone else nods along.

The games below work cooperatively at 6 or more players because they either split roles (so everyone has a specific job), use simultaneous play (so everyone is always doing something), or lean into conversation and discussion as the core mechanic.

Captain Sonar

The ultimate cooperative large-group game. You split 6 to 8 players into two competing submarine crews, and each crew is fully cooperative. Your four roles (Captain, Radio Operator, First Mate, Engineer) are all active at the same time, all feeding information to each other, all under the same time pressure.

There is no leader. The Engineer can refuse a direction if the systems can't handle it. The Radio Operator can override the Captain's assumptions about where the enemy is. Everyone's job is essential and everyone is talking constantly.

The catch: it needs at least 6 people and works best with exactly 8.

The best fully cooperative large-group game. Everyone has a job and nobody sits idle.

Just One

Just One is cooperative by design. The whole table is on the same team trying to help the guesser. There's no leader, no quarterback problem, because every player writes their own clue independently and simultaneously.

With 7 players, you have 7 people trying to come up with different clues for the same word. The duplicate-cancelling mechanic means the group wins or loses together based on whether they can think differently from each other. It's properly cooperative, not just "everyone watches one person make decisions."

Genuinely cooperative at any player count. Everyone contributes simultaneously.

Wavelength

Wavelength is cooperative within each team. One person gives a clue, the whole team discusses, and they decide together where to place the dial. There's no single correct answer, which means the discussion is real, not just a formality.

It works at 6 to 12 players because you split into two teams and both teams are always engaged. When one team is placing the dial, the other team is watching, knowing they'll get bonus points if they can guess where it lands without any information.

Team-based cooperation with genuine group discussion on every single clue.

Blood on the Clocktower

Blood on the Clocktower is technically a social deduction game, but the good team (Townsfolk and Outsiders) is cooperating against the evil team. With 10 to 15 players, you have a large cooperative team working together to solve an information puzzle.

The key advantage over traditional cooperative games: dead players still participate fully. This eliminates the spectator problem that plagues other large-group formats. If you're killed on night one, you're still talking, voting, and contributing to the investigation.

Large-scale deduction with full cooperative play. No spectating when you're eliminated.

Herd Mentality

Herd Mentality is cooperative in spirit even though it technically has individual scoring. The entire group is trying to answer the same question the same way. When it works, you all look at each other and laugh. When it fails (someone writes the weird answer), you all look at that one person.

It's a shared experience. The pink cow creates a collective villain for the round, and everyone roots for them to get rid of it. At large counts (10 or more), reading the room becomes genuinely difficult, and that difficulty makes the game funnier.

Low pressure, big laughs. Works as a cooperative experience even though it's technically individual.

Tips for cooperative games with large groups

The "alpha player" problem (one person directing everyone else) is worst in games with individual turns and shared information. Avoid it by choosing games where everyone acts simultaneously.

Role-based cooperative games scale better than resource-management cooperative games. When everyone has a specific job, nobody can dominate.

Keep sessions to under an hour. Cooperative games require everyone's attention. At 90 minutes with 8 players, focus starts to waver badly.