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About ibb & obb
ibb & obb is a two‑player cooperative puzzle game where gravity works both upward and downward. Players must coordinate to navigate 15 main levels and eight hidden worlds built around double‑gravity challenges.
The title offers local split‑screen and online co‑op on Windows and Linux, and features a warm electronic soundtrack by Kettel. Steam integration adds achievements, leaderboards, cloud saves, and trading cards.
01 / THE GUIDE
Co‑op Modes
The game provides two cooperative options: local split‑screen for players sharing a single screen, and online matchmaking that connects two players over the internet. Both modes require both participants to act together to solve each puzzle.
Each level is designed for two participants, meaning puzzles often need simultaneous actions or coordinated timing. Communication between the two players is therefore a core part of progressing through the game.
- Discuss each intended move before executing it.
- Use voice chat or a quick call for online sessions.
02 / THE GUIDE
Gravity Puzzles
All levels rely on a double‑gravity system where characters and objects can fall upward as well as downward. Players must learn how to switch between the two directions to reach new platforms and activate switches.
The difficulty curve spans 15 main levels and eight hidden worlds, each introducing new configurations of upward and downward movement that test spatial reasoning and teamwork.
- Watch how objects behave in both directions before moving.
- Experiment with opposite gravity to discover shortcuts.

03 / THE GUIDE
Soundtrack
Every level features its own unique track composed by Kettel, known for warm melodic electronica. The music matches the pacing of each puzzle and adds atmosphere to the gameplay.
Because each world has a distinct piece, players can often identify the current level by its music alone, providing an auditory cue that complements visual information.
- Listen for rhythmic changes that may hint at puzzle timing.
- Adjust volume so music does not mask important sound effects.
04 / THE GUIDE
Steam Features
ibb & obb integrates several Steam services: achievements, leaderboards, cloud saving, and trading cards. These features give players extra goals and a way to compare progress with others.
Cloud saving links progress to the player's Steam account, while leaderboards allow players to see how they rank relative to the community.
- Check the achievement list for optional challenges.
- Visit the leaderboard to gauge community performance.
05 / THE GUIDE
Cross‑Platform Multiplayer
The game supports cross‑platform multiplayer, enabling Windows and Linux users to join the same cooperative session. This expands the pool of potential partners regardless of operating system.
Full controller support is listed as a feature, indicating that gamepads are recognized as input devices, though specific controller configurations are not detailed.
- Coordinate a session with a friend on a different platform ahead of time.
- Confirm both players have compatible input devices before starting.





COMMUNITY
Player discussion