Jams and challenges

Use an event for a focused question: a jam gathers new prototypes around one prompt, a challenge races players for the best score on one prototype.

Two kinds of event

Jam

A creation event with prototype entries. It can run online, in person, or as a hybrid, with a public venue and an optional HTTPS participation link where appropriate.

  • Choose visibility independently: public is listed, unlisted works by link, and private is visible only to invited accounts and entrants.
  • Choose admission independently: open entry, host approval after an application, or invitation only. Private jams always require invitations.
  • Accept an existing live prototype or a new upload.
  • Set the submission window, optional separate voting window, bundle limit, and winner method: community, invited jury, or host selection.
  • The judged version is captured at submission time.
  • A user-hosted merit prize needs a named provider and official rules. The host handles eligibility, legal compliance, judging, delivery, taxes, and disputes.
Browse jams

Challenge

A score race on one of the host's live prototypes. The prototype reports scores through the SDK and real sessions form the leaderboard.

  • Public challenges require a real-use history.
  • Choose a general, creator-regular, or category-expert participation gate.
  • Private challenges remove the experience wall and admit named participants.
  • Use seeded randomness when every run should be comparable.
Browse challenges

Make it look like your event

A jam and a challenge each take a header banner and a square mark, exactly as a collection does. Open the event and use Appearance; the sizes and the safe area are the ones described in Collections.

The page still says which of the two it is, in the header and in how it is laid out underneath: a jam is organized around entering and entries, a challenge around eligibility and the leaderboard. Art changes how a page looks, never what it is.

Before hosting: write one clear prompt, define who may enter, give enough time to build and test, state the judging method, publish conduct and eligibility rules, and explain how results are announced. For a physical event, publish only a suitable public venue. For prizes, read the event terms and obtain legal advice where needed. Creating either event currently requires Pro or higher.
Host an event