Welcome to the SoloDevelopment Halloween Jam #9!

THEME VOTING

Want to suggest a Halloween theme? suggest themes here

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Three days to craft something eerie or otherworldly. Our Halloween jam brings together solo developers for a focused weekend of creation.

Some folks join us every year, others are discovering us for the first time. Either way, you've got 72 hours to build something memorable.

⏳ Schedule:

• Start Time: October 24, 2025, 3:00 PM EDT (7:00 PM UTC)
• End Time: October 27, 2025, 3:00 PM EDT (7:00 PM UTC)
• Duration: 72 Hours
• Voting Period Deadline: November 8, 2025, 3:00 PM EDT (7:00 PM UTC)

🎃 Theme: Black and White

Theme will be announced at jam start!
Vote on Themes (Round 3)
suggest themes here

Rules:

• Solo Developers Only: This jam is just for solo devs—show off what you can do on your own.
• Pre-made Assets: Allowed if you have the legal rights to use them.
• No AI-Generated Assets: Keep the work your own.
• Game Engines: Use whatever engine you like.
• New Projects Only: Build it during the jam weekend. Old work or spam submissions will be removed.

Prize:

The winner will receive the "Jam Winner" Discord role and enter our Hall of Fame

Judging Criteria:

• Creativity: Unique ideas or unexpected twists.
• Gameplay: Is it fun, interesting, or engaging?
• Theme Interpretation: How well the theme was used.
• Polish: Overall feel and finish of the game.

Community and Support:

Join our Discord to chat with other participants, share progress, and get feedback. Explore past jams and submissions here.

Get Started:

Mark your calendars and get ready to build—72 hours of focused solo dev begins 1 week before Halloween, October 24.