Update (June 12, 2026): We’ve updated bundle creation, and you may no longer need to contact itch.io to convert a jam into a bundle:
- The bundle form can now import a jam’s entries directly: paste the jam’s URL into the project URL field to add every entry, up to 750 projects. For most jams you can now create the bundle yourself without contacting itch.io, and the steps below have been updated accordingly.
- Bundles can now be edited after they’re created, including their projects and revenue split, up until the first participant approves. If you need to make changes after that but before publishing, you can reset participation to unlock the bundle, at the cost of every participant having to approve again.
- You can enable pruning when creating a bundle, which lets you remove the participants that don’t approve, along with their projects, as long as their projects make up no more than 15% of the bundle.
See the co-op bundle documentation for details.
You may have seen some of the larger bundles that itch.io has hosted where we have an open submission period for participants. Utilizing our Jams functionality, you can create a public page to collect and curate submissions that can be converted into a bundle. Here’s an overview of how that works:
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Create a “jam” page for your bundle: Visit /jams/new to create a jam page dedicated to collecting submissions for your bundle. Please include as many details about the bundle as possible on this page so potential participants understand what they are submitting to. If you know the dates and price of your bundle, please include them in the description.
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Set up the submission period: Utilize the jam’s submission period to establish a specific time frame during which anyone can submit their game or project to be considered for the bundle.
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Utilize “Custom fields” for additional information: “Custom fields” will require submitters to include additional information in a structured way. For example, if you have price tiers, you can ask them to indicate their desired tier.
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Curate submissions: As the host, it is your responsibility to curate the submissions. Use the “disqualify” tool provided to manage the eligibility of each submission for the bundle. Entries that are disqualified will not be included in the final bundle.
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Create the bundle from the jam: After curating, paste the jam’s URL into the project URL field on the new bundle form to import every entry, up to 750 projects. Disqualified entries are excluded automatically. Use the revenue split presets to give every participant an equal share, or a share weighted by how many projects they contributed, then adjust individual participants as needed. We recommend enabling pruning so unresponsive participants can’t prevent the bundle from publishing.
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Use the jam’s “email” tool to contact submitters: All participants of the bundle must approve the final bundle from the bundle’s page. Use the “Email” tab on the jam’s edit page to share the link of the bundle to every submitter. All participants must approve of the bundle before it can be set live.
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Prune non-acceptees if necessary: In case there are participants who are unable to accept in time for the bundle, they can be removed without involving itch.io staff. If you enabled pruning when creating the bundle, you can remove all pending participants from the bundle’s edit page, as long as their projects make up no more than 15% of the bundle (see the pruning documentation). For larger changes, reset participation to unlock the bundle, remove the unresponsive participants’ projects yourself, and send the approval link out again.
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Adding late submissions: While the bundle is still unlocked, you can paste the jam’s URL into the bundle’s edit form again to pick up new entries; projects already in the bundle are skipped. Once the bundle has been published, its contents can no longer be changed.
Very large bundles: The bundle form’s jam import is limited to 750 projects. If your bundle is too large for the editor, please contact support and they can manually synchronize a jam to a bundle. You can create an “empty” bundle for staff to fill by visiting /bundle/new?allow_empty.
Please note that to collect earnings from a bundle on itch.io, the account must be eligible for itch.io’s payouts system. To learn more about co-op bundles and the eligibility requirements for itch.io’s payouts system, please visit the following link: itch.io Co-op Bundles Documentation