Contact
If Filler is not working as expected, email lordegraphics@gmail.com. Tell us your device model, operating system, and what happened. Please do not send a private room credential or a screenshot containing information you do not want to share.
Playing with a friend
Open Online and choose Create a room. Share the six-character code or invite link with one friend. They can open the link or choose Enter a room code in the app. A room holds two players. If it is full, create a new room. If a code has expired, ask the host for a new one.
Connection problems
Both players need an internet connection for online play. If a connection drops, reopen Filler on the same device and return to the room while it is still active. A waiting room expires after about 30 minutes; a joined room after about 24 hours.
Computer play and undo
Computer games work offline. Regular and Hard use different game-engine settings. Undo is available only against the computer and takes back your most recent move.
Notifications
Game notifications are optional. Turn them on in Filler settings to get an alert when a friend joins or when it is your turn while you are away. Also check your device's notification settings if alerts do not arrive. Online play still works without them.
Privacy
Read the Privacy Policy for details about local data, temporary online rooms, push notifications, and deletion.