Cozy Marbles has expanded its build-and-race toolbox through a partnership with Jelle’s Marble Runs. The new Jelle’s Marble Runs Supporter’s Pack is now available on Steam, accompanied by a free base-game update that adds nine courses inspired by Marbula One tracks.
The paid pack costs $3.99 USD, €3.99 EUR, or £3.49 GBP. Its contents are focused on bringing recognisable Marbula One presentation pieces into player-made courses: Jelle’s flame marble, 32 Marbula One team marbles, a Marbula One billboard, and a customisable Marbula One spectator stand.
For players who simply want new layouts to race on, the course update is separate from the paid add-on. That distinction matters: the nine new Marbula One-inspired courses arrive as a free update to the core game, while the Supporter’s Pack supplies themed marbles and construction décor for builders pursuing a more specific event-style look.
What the Supporter’s Pack includes
The Supporter’s Pack is designed around cosmetic and creative options rather than a new standalone game mode. Its marquee item is Jelle’s iconic flame marble, joined by 32 team marbles associated with Marbula One. Players also receive a billboard and a spectator stand that can be customised when building a Marbula One-themed track.
That makes the pack most relevant to players using Cozy Marbles as a digital marble-run workshop. A marble-run simulator is a construction game where the central challenge is assembling a functioning course, then observing how marbles travel through it. The added team marbles and venue pieces give creators a way to build races with a more deliberate visual identity, instead of treating every run as a purely abstract physics experiment.
The contents also fit naturally with Cozy Marbles’ existing focus on freeform creation. The game lets users construct marble runs from a library of parts, including spirals, twists, boosters and drops. Cannons can launch marbles into a layout, while xylophone blocks provide a musical element as marbles pass over them. In that setting, a spectator stand and billboard are not simply background props: they are tools for framing a course as a staged competition.
Nine free tracks inspired by Marbula One
The accompanying free update adds the following nine courses:
- Aquamaring
- Hivedrive
- Midnight Bay
- Minty Mania
- Momotorway
- Savage Speedway
- Shortcircuit
- Sleet Street
- Stardust Accelerator
These courses are inspired by Jelle’s Marbula One tracks, giving the collaboration a practical side beyond its themed add-on. They offer ready-made places to race, and they also provide examples of how a competitive marble course can be structured within Cozy Marbles’ systems.
Related coverage includes Cozy Marbles Adds Jelle’s Marble Runs Supporter’s Pack.
For newer players, prebuilt courses can be useful as a way to understand the relationship between track geometry and a marble’s route. A booster, for example, is a part intended to add momentum; a drop changes height and can alter pacing; a tight twist or spiral asks the course to manage direction and speed. Cozy Marbles supports all of those part types, and its new set of inspired courses should provide more combinations to examine before committing to a personal build.
The word inspired is important here. The update adds Cozy Marbles courses based on the identity of Marbula One tracks; it does not claim to provide an exact recreation of every referenced layout. The supplied information does not detail each course’s individual design, so players should look at the in-game tracks rather than assume one-to-one reproductions.
A collaboration built for builders and sharers
Creator Tim Reiter described the partnership as a long-held ambition and highlighted the chance for players to race iconic teams across tracks inspired by Jelle’s courses or make their own. The emphasis on community creations fits the game’s existing Steam Workshop integration.
Steam Workshop integration means players can share creations through Steam and import courses made by others from within the game. In a construction-focused title, that is significant because a course does not have to remain on the device where it was built. Builders can publish a layout, while other players can bring it into their own game and race it. A themed set of team marbles, track scenery and newly added courses could therefore give the community a shared visual vocabulary for its uploads.
It also separates two kinds of play that Cozy Marbles supports. One is the hands-on process of assembling a run: choosing parts, connecting sections and experimenting with launches, slopes, obstacles and musical blocks. The other is the observational side: watching marbles make their way through the finished route, then adjusting the construction if the result is not what the builder intended. Shared courses extend both. They let players inspect other approaches to layout design, and they provide more tracks to race without requiring everyone to begin from an empty workspace.
What Cozy Marbles offers outside this update
Cozy Marbles is described as a laidback marble-run simulation with a broad parts library and freeform construction tools. Its central premise is not limited to racing a fixed selection of official courses. Players can build with spirals, twists, boosters and drops; launch marbles through cannons; and use xylophone blocks to make music as a run unfolds. The game also includes in-game challenges alongside its building and sharing features.
That combination gives the Jelle’s Marble Runs material multiple uses. Players interested in a race presentation can set up team marbles, add the billboard and spectator stand, and use the new inspired courses as a starting point. Players primarily drawn to creative construction can treat the same pieces as themed additions to a more experimental layout. And players who prefer to play rather than build can approach the nine free courses as additional official content.
The update is therefore structured so that the collaboration is not locked entirely behind the paid pack. The purchasable portion is a supporter pack with specific themed assets, while the course expansion reaches everyone with the base game. That is a clear division between optional themed building materials and the wider play space added through the free update.
Steam availability and pricing
Cozy Marbles is available now on Steam. The Jelle’s Marble Runs Supporter’s Pack is also available there for $3.99 USD, €3.99 EUR, or £3.49 GBP. Prices supplied for the pack are region-specific, so players should check the Steam listing for their own storefront details.
The collaboration arrives alongside a busy day for PC releases; for a wider snapshot, see the games releasing on November 10, 2026.
In practical terms, Cozy Marbles players have two entry points into this update. The free route is the nine-course Marbula One-inspired selection. The paid route adds Jelle’s flame marble, 32 team marbles and themed venue assets for creators who want to construct their own Marbula One-flavoured events. Both routes build on the same core appeal: making a marble run, setting it in motion, and seeing whether the design delivers the race—or glorious, rolling chaos—the builder imagined.
