Online co op campaign games let friends in different places work through a story of challenges together. Bomb Appétit's 20 missions play this way in an online room: one five-letter code, a voice or video call, and a section of five missions each night. After every bomb, the Defuser posts the results link so everyone sees what happened.
What does an online co op campaign need besides the bomb?
An online campaign needs three things beyond the game: a call for voices, a room for the bomb, and a device for each player. The game carries no audio, so the group picks its own call app. The room links the Defuser's bomb to every Expert's manual, and each person joins from their own browser.
The call comes first. Any phone, voice or video call works, because the game only needs people to hear each other clearly. Headphones help a lot, since they stop one player's speakers from feeding back into their microphone and muddying what the Defuser says. Video is optional; the bomb is never shown on camera, so faces are a bonus rather than a need.
The room comes next. The host creates it from the Play page and gets a five-letter code to share. Friends open the room's address or type the code, give a name, and land in the lobby. In the lobby each player picks a role: one becomes the Defuser and the rest stay Experts. The host chooses a mission from a list numbered by section, such as "2.5 Rush hour", and arms the bomb when everyone is ready.
Devices are the last piece. The Defuser needs the biggest screen in the group, ideally a laptop, because the bomb is what gets looked at closely. Experts can use anything with a browser, since the manual reads well on a phone. Once the bomb is armed, an Expert's screen shows the manual on the right rule seed with a bar for the timer, strikes and solved modules; it never shows the bomb. What a remote Expert sees, and why that is all they get, is covered in what a remote Expert sees in a browser room.
No one needs an account to play. The Defuser of each night should still sign in with GitHub, because only signed-in players keep progress across devices and appear on the boards.
An online campaign night run sheet
Fill this in before the call and keep it in the group chat. The room code and the posted links below are invented examples; the missions and clocks are Section 2 from the game's data.
| Step | What happens | Invented example |
|---|---|---|
| 1 | Start the call | Group voice call, everyone on headphones |
| 2 | Host creates the room and posts the code | Room code KTMWZ posted in the chat |
| 3 | Everyone joins and one player takes the Defuser seat | Sam defuses tonight |
| 4 | Echo chamber, 5 minute clock | Results link posted after the bomb |
| 5 | Word salad, 5 minute clock | Results link posted after the bomb |
| 6 | Second helpings, 5 minute clock | Results link posted after the bomb |
| 7 | Mixed plate, 7 minute clock | Results link posted after the bomb |
| 8 | Rush hour, 6 minute clock | Results link posted after the bomb |
| 9 | Note which mission starts the next night | Signal fire, Section 3 |
Online campaign order: which sections survive a laggy call?
Sections 1 and 2 survive a laggy call best, because every module waits for the team. Section 3 is where delay starts to hurt, since needy modules wake on their own and give a short countdown to answer. A second or two of audio lag on every exchange eats into those countdowns quickly.
Regular modules are patient. A Wires module does not care whether the Expert's answer arrives instantly or a beat late; the only cost is a slower clock overall. That makes the Appetizers and the Main course forgiving over a poor connection. A group with one friend on hotel Wi-Fi can still play both sections well.
Needy modules are not patient. Pressure Vent wakes with a yes or no question and 40 seconds to answer, and Dial Alignment gives 40 seconds to set a dial from a pattern of twelve lights. Over a call, the Defuser has to notice the module, read it out, wait for the Expert to hear and look it up, and then hear the answer. Each hand-off across a laggy line adds delay, and a missed countdown is a strike.
The needy missions start with Pressure cooker in Section 3 and continue through Full boil, Back of house, No substitutions and Double shift. If one player's audio is unreliable, put them on pages that do not involve needy modules, or give them the Defuser seat on Sections 1 and 2 and keep the strongest connection on the bomb for the later sections. The Defuser can change between missions, but not during one, as changing the Defuser in a room explains.
A longer clock helps too. Back of house gives nine minutes and Double shift gives fifteen, which leaves room for the extra seconds a call costs, as long as needy modules are answered first. The clock on every mission, and how long a whole attempt takes with setup, is listed in how long each mission takes.
Tracking an online campaign without a shared table
An online group keeps track through the room's lobby and the results page. When a bomb ends, everyone in the room returns to the lobby, which shows the last result with a details link. The Defuser copies that link into the chat, and anyone can open it to see each module's solve time and strikes.
The results page is the heart of an online debrief. It shows the mission, the date, the time left, the strikes against the limit, the rule seed, and whether the server verified the run by replaying it. Below that, each module is listed with the time it was solved and any strikes it caused. A team in different homes can look at the same page together and spot the module that cost them.
Posting the link after every mission builds a simple campaign log in the group chat. By the end of a section, five links in a row show the night's story. If someone missed the session, those links are the catch-up.
For longer-term tracking, the signed-in Defuser's account does the rest. The missions page marks each defused mission with the best time left, and the dashboard counts how many of the 20 that player has defused. Experts who joined the room are recorded by name on each run, so the board shows the whole team beside the Defuser's name.
When should an online campaign night switch to freeplay?
Switch to freeplay when the call is tired but nobody wants to stop. A freeplay bomb lets the host choose fewer modules, a shorter or longer clock, more strikes, and which module types to include. That makes it a good way to end a night gently, or to practise the one module that keeps causing strikes.
In a room, the host switches by choosing "Freeplay (custom)" from the same list the missions are in. The settings start at three modules, five minutes, three strikes and the standard manual, and changing the module count adjusts the suggested clock by a minute per module above three. Strikes can go up to five, which makes a relaxed round after a hard mission. The full set of options is in building a freeplay bomb.
Freeplay is also a practice tool between campaign nights. If Recall cost the team on Second helpings, a freeplay bomb with only Recall in the mix lets the Defuser and Experts repeat it until the five stages feel routine.
Freeplay runs do not go on any leaderboard, since boards belong to missions. That is part of the appeal on a tired call: nothing is at stake.
The online campaign mistake: starting Section 3 at the end of a long call
The worst time to start Section 3 is after an hour on a call. It brings three new module types and then the first needy modules, which need quick, clear answers. Late in a call, attention drops, people talk over each other, and a missed needy countdown is a strike.
Calls wear people out in a way a table does not. Everyone is listening hard through headphones, nobody can read faces easily, and the small delays add up. By the end of an hour, a group that was sharp on Rush hour is noticeably slower, and Section 3 is exactly the wrong place to find that out.
A better plan puts each section on its own night, starting with the call fresh. If the group finishes Section 2 early and wants more, play one of the short Section 1 missions again or try a freeplay round, and save Signal fire for the next session. For short sessions between campaign nights, our post on quick online games to play with friends suggests three short bombs that fit a break.
When the group does start Section 3, open the night with Signal fire and Spaghetti, which have no needy modules, and agree who listens for needy modules before Pressure cooker. A fresh call and a named watcher make the House specials far more fun than a tired group racing a 40-second countdown.