1vs1go

Challenge your friends to a live duel, send them a round to reply to later, and collect Flames together. At 1vs1go, you'll find races, puzzles, card games, and skill games—online and, with 69 games, offline as well.

Online Duels with Friends: Invite friends to your lobby via link or room code. There, you set the game and rules: a one-on-one duel, a mini-cup, or a friends' tournament with 3, 5, or 7 matches. Which game is next? You decide.

Send Rounds—Everyone Plays When It Fits: You don't need to be online at the same time. You play your round and send it; your friend replies later with the same tasks. Open rounds have a 48-hour deadline. For supported games, this also works as a mini-cup.

Collect Flames with Friends: Add friends with one account. Your Flames count the matches completed together: in the friends' lobby, in the mini-cup, in the friends' tournament, and when sending rounds. In your profile and during your duels, you can see your matches and how many times you've played against each other.

Against the world and in the World Tournament
Choose a game, and we'll find your opponent. In the World Tournament, the game changes every five minutes. Earn points for the weekly leaderboard with your results.

Race, puzzle, match
Drift through the curves in KART BURST, match the right pieces in SWAP ELEMENTS, or build your pancake tower in PAN DUEL. Plus, classics like Sudoku, DURAK, and PAARISSIMO. Practice in the computer training, take on the daily challenge, or improve your record in the endless run.

69 games even without internet
Play offline against the computer. For supported games, you can start an endless run with increasing difficulty. Favorites and "Recently Played" let you quickly access your games. Collect personal records and medals that stay on your device.

Sudoku and more at your own pace

Sudoku, classic PAARISSIMO card pairs, and classic word chains have a solo mode without opponents or time limits. Use Sudoku notes and, if desired, set personal time records and earn speed medals. You can save your quiet solo games and suitable computer games and continue them later.

Your profile, your progress

Start as a guest. With an optional account, you can access your online progress across multiple devices, as well as your friends list and Flames. In your profile, you'll find your level, achievements, and completed duels. You can adjust the brightness, sound, and subtle haptic feedback.

Online duels, sending rounds, friends, and Flames require an internet connection. Offline results remain on your device and are tracked separately from online XP and leaderboards. Game modes and variations differ for each game.

The Android app may occasionally display limited, non-personalized advertising after games have been completed. Offline play remains available without an internet connection.