Yes. Co-op games to play against friends work when you split into two groups that each play the same setup, then compare results. In Bomb Appétit, both groups use one freeplay link, so they share a rule seed, module count, timer and strike limit. Each group defuses its own bomb, and you compare time left and strikes afterwards.
How games to play against friends work with a co-op bomb
A cooperative game turns competitive when two teams face matching challenges and compare outcomes. Inside each team, everyone still works together. Between teams, the result decides who wins. Bomb Appétit suits this because a freeplay link fixes the rules and settings for both groups, while each team keeps its own Defuser and Experts.
The game itself has no versus mode. Every bomb is a cooperative puzzle for one group of two to five people: one Defuser who sees the bomb, and one to four Experts who read the manual. There is no score carried across rounds and no head-to-head screen. The competition lives outside the game, in the agreement between groups.
That is less of a limit than it sounds. Plenty of party competitions work the same way: two teams take the same quiz, or two kitchens cook the same recipe. What makes it fair is that both sides face the same task under the same conditions. A shared rule seed provides the "same task" part for a bomb round.
The format also suits a larger crowd. A group of eight or ten is too many for one bomb, since a bomb seats five at most. Two groups of four or five, each on its own device, keep everyone involved.
Inside each group, rotating the Defuser keeps the contest friendly. If every member takes the bomb once over the evening, a group's result reflects the whole team rather than its one confident talker. It also means everyone gets a turn at the seat with the most pressure.
Groups can sit in the same room or play far apart. In separate homes, each group can run its own online room with its own five-letter code, as long as both rooms use the same freeplay settings and seed.
Setting up two groups on one rule seed and one freeplay link
Choose the settings once, then copy the resulting freeplay link to both Defusers. The link carries the module count, needy modules, time, strike limit and rule seed. Each group's Experts open the manual for that seed. Agree the rules of the contest in advance, especially what counts as winning.
Here is a one-page setup for a two-group challenge. The values are an example.
Two-group challenge, example setup
- Shared freeplay link:
https://bombappetit.com/bomb?modules=4&needy=0&time=360&strikes=3&rule=52190 - Rule seed: 52190, chosen by digits from both groups, unplayed by anyone present
- Settings: four modules, no needy modules, 6 minutes, 3 strikes allowed
- Manual for Experts: the manual for seed 52190, opened from the Play page's "Open manual" button
- Rounds: three each, alternating groups
- What each group writes down after each round: defused or not, time left, strikes, and the first module that caused trouble
- Winner: more defusals across three rounds; ties broken by total time left, then fewest strikes
The Defuser of each group opens the link on their own device and arms the bomb when their group is ready. The Experts never see the bomb.
To set it up, one person opens the Play page, chooses the settings and seed in the freeplay panel, and presses "Deal me a bomb". The address in the bar now holds the whole setup. Copy it before arming and send it to the other group's Defuser.
A fresh seed is the most even choice, because neither group can know it. That raises the first-round challenge for both, so it is worth reading the guide to strategies for a first round on a new seed before you start.
What stays fair between groups, and what differs?
The rules and settings are identical for both groups: same manual, same number of modules, same time, same strikes. The bomb is not. Each time a freeplay link is opened, the server deals a new bomb, so the two groups face different modules, colours and edgework. Luck is part of every single-round comparison.
A clear list helps everyone accept the result.
The same for both groups:
- The rule seed and therefore every manual page
- The number of regular modules and needy modules
- The time limit and the strike limit
- The pool of modules the bomb can draw from
Different for each group:
- Which modules appear, from the pool
- Wire colours, glyphs, words, mazes and the other details on each module
- The edgework: serial number, batteries, indicators and ports
That second list is why two groups on one seed do not compare move by move. Why that is, and which missions are the exception, is in the explanation of same seed, different bombs.
The remedy for luck is more rounds. A single round can turn on one awkward module. Three or five rounds per group spreads the luck out. Narrowing the module pool also helps, since a smaller pool means the two bombs look more alike.
What never becomes fair is the people. One group may have a natural Defuser, the other an Expert who reads fast. That is the contest, not a flaw in it. Swapping one player between groups halfway through is a friendly way to balance an obvious mismatch.
Who keeps score when the game does not?
The players do. Bomb Appétit shows a results screen after each bomb, with time left, strikes and time played, plus when each module was solved. It does not add those up across rounds. Pick one person per group, or a neutral scorekeeper, to write the numbers down straight away.
A neutral scorekeeper works well in the same room. They can also act as timekeeper for the contest, call each group's start, and settle disputes about what counts. When playing in separate homes, each group's Defuser reads the results screen aloud on the shared call before pressing "Play again".
A scoresheet can be as simple as one line per round. For example: "Round 2, group B: defused, 1:42 left, 1 strike, stuck on Labyrinth." Three rounds per group fit on the back of an envelope, and the winner is clear at a glance once the agreed rule is applied.
The results screen gives more than the headline. It lists every module with the time it was solved, or "not solved", and any strikes on it. That breakdown makes for good conversation after the contest: which module slowed each group down.
When the game saves a run, the results screen also offers a shareable result link. Groups that want a record can paste each other's links into the chat rather than relying on memory.
For a ranked comparison that the game keeps for you, use a mission instead of freeplay. Each mission has its own leaderboard, and signed-in players are listed by their best verified defusal. How those boards order runs is set out in the guide to a ranked comparison instead. Freeplay rounds do not appear on any board, so a custom-seed contest is always scored by hand. For everything the leaderboard checks, see how a defusal gets ranked on the leaderboards.
The rival groups mistake: one group reading the other's manual first
The easiest way to spoil a two-group contest is a head start on the manual. If group A plays first and group B's Experts watch, or open the seed's manual early, group B arrives knowing the pages. The fix is to give both groups the seed at the same moment, or let them play at the same time.
The head start is rarely deliberate. In a shared living room, the waiting group can hear every rule group A's Experts read aloud. Over a call, a curious Expert opens the manual link "just to look" while the other group plays. Either way, the second group gets practice the first did not.
Some fixes:
- Play at the same time. Two bombs, two corners of the room, or two separate rooms online. Nobody waits, so nobody overhears.
- Alternate rounds. If groups take turns, let group B go first in round two, so any advantage swaps.
- Keep the waiting group out of earshot. A different room, or a muted call, during the other group's round.
- Reveal the seed at the start. Pick it together, then start both groups the moment it is confirmed.
A subtler version is a seed one group already knows from an earlier evening. Before agreeing a seed, ask everyone whether they have played it. If anyone has, choose another number together; with almost a million to pick from, a replacement costs nothing but a few seconds.
If both groups want a real test of reading under pressure, aim for a manual neither has seen. The guide to a manual nobody knows makes that the whole point.