Multiplayer & matchmaking

BOMBANANA! needs three players. The official FAQ confirms that Steam friendship is not required: players can use a Server Browser or a room code. The v1.0.2 announcement adds solo-player matchmaking and a control to hide or reveal the lobby code. ^{[1] [4]}

Choose a join method

1. Host friends: press Play, then choose Create Lobby. Share the displayed room code; v1.0.2 lets the host hide or reveal it.
2. Join by code: press Play, choose the private/code join path, and paste the host's room code.
3. Join a public room: use Join Public Lobby for open seats, or use the Server Browser and filter the listing by its name, code or country.
4. Confirm before starting: the walkthrough describes the lobby as showing role seats, and says all three roles are needed before play. Treat the filled three-seat lobby as the successful pre-game feedback.

The button names and lobby feedback in this sequence are from one September 11 walkthrough; this site did not reproduce the sequence. The official sources independently support the available join channels and the v1.0.2 features. ^[3]

If joining fails

First re-check that the host shared the current code, that the room is visible in the Browser when using the public route, and that all three players are joining the same lobby. The September 7 “Failed to Join” report does not diagnose a regional, host, closed-room or service cause, so this page does not present any of those possibilities as the reason. ^[5]

If the retry still fails, capture the exact error, method (code, Browser or matchmaking), build and time, then report it in Steam's Bug Reports forum or the official Discord. The official patch also says controller UI visibility was fixed in v1.0.2; update first if the relevant lobby control is missing. ^{[4] [1]}