Open now · By request
Bye Bye Bonnie playtest
by Brainwash Gang
Bye Bye Bonnie is a co-op journey for up to 4 players set in a dystopian wasteland. Tee-up a giant talking skull to defy physics, conquer dungeons, help strange NPCs, and find lost siblings. Upgrade your skull to ascend The Tower. Mother is waiting...
It's free to ask. The developer chooses who gets in.
- Access
- By request
- On playtest since
- Nov 12, 2026
- Planned release
- To be announced
- Developer
- Brainwash Gang
- Platforms
- Windows
- Players
- Co-op, Multiplayer, Online co-op, Single-player, Split-screen co-op
- Languages
- English, Simplified Chinese
How to join the Bye Bye Bonnie playtest
- Open the game's Steam page with the Request access button. Sign in to Steam if it asks.
- Request access to the Bye Bye Bonnie playtest there. It's free and doesn't commit you to anything.
- The developer lets players in, often in batches, so it can take a while. Steam emails you when you're in, and the playtest appears in your library.
New to playtests? How Steam playtests work
About Bye Bye Bonnie
"Goodbye Children. Stay home, stay safe.”
Mother is gone, and she took most of your beloved siblings with her. All she left behind is a note, her songs, and a very tall Tower which looms on the horizon. So, you do the only reasonable thing: climb into your talking skull and start rolling through the vibrant toy-punk wasteland.
Head out on a heartfelt, co-operative journey with an unusual blend of arcade mechanics. Solve physics-based challenges, maneuver through themed dungeons, and collect songs that tell the story of a fractured world. Upgrade your skull until you feel ready to take on the final challenge of "The Tower" - a monolithic structure that requires coordinated teamwork to ascend. The secrets of your broken world await you at the top.
Inside your rolling home, lovingly known as Bonnie, your team will need to work together from a center console to press buttons, pull levers, and activate abilities, all operated in sync, to affect the power, distance and trajectory of every shot. When you leave your skull to collect precious resources, banish skull-stealing butterflies, or solve environmental puzzles, Bye Bye Bonnie plays like a classic platformer!
The skull's controls are operated together, and good communication is the difference between a perfect shot and falling prey to gravity. Every lever, every ability, every landing belongs to all of you at once. Built for up to 4 players.
Seen through children's eyes, the dystopian wasteland becomes a vibrant toy-punk playground: 4+ biomes hiding pinball-esque structures, gravity-reversing water traps, and other physics-defying dungeons. Dodge lightning and skull-snatching butterflies, help strange locals with their peculiar requests, and rescue your lost siblings before the wasteland claims them.
Venture into the wasteland to unlock and upgrade your skull’s abilities, from the parachute to space manipulation. Between shots, hunt for hidden cosmetics, secrets, and the scattered songs of a haunting and nostalgic soundtrack that acts as a breadcrumb trail to your missing family.
From the game's Steam page.
