Artistic rendering – Event may differ
GameDev.tv Halloween Jam 2025
10-day game jam with secret theme and trick-or-treat mechanic
About
Dive into the GameDev.tv Halloween Jam 2025, a 10-day game development challenge where creators can work solo or in teams. Participants will craft games inspired by a secret visual theme and a fun 'Trick-or-Treat' mechanic twist. Free asset packs are provided by sponsors to help bring creative visions to life. After the jam, a week-long voting period allows participants to rate each other's creations.
Our Take
Scare Factor
Family Friendly
Best For
Game developers, aspiring game creators, teams
Vibe
Creative, collaborative, challenging, festive
Energy Level
High
Budget
FREE
Photo Friendly
N/a
Weather Sensitivity
Not applicable
Special Events & Promotions
- Free asset packs provided by sponsors
- Secret visual theme and 'Trick-or-Treat' mechanic twist
- Live stream for questions and kick-off
Always check the official website for the most current information.
We've done our best to keep details up-to-date, but event schedules, prices, and policies can change. For the latest updates, please visit the official website or contact the organizers directly.
Location
Event Details
Pricing
FREE
Duration
10 days
Ages
All ages
Timed Entry
No
Organizer
gamedevtv
Practical Information
Pet Policy
No pets allowed
Tips & Advice
- Connect with potential teammates on the official Discord server or Facebook group to form a collaborative team for the jam.
- Prioritize finishing a small, polished game within the first 4 days to allow ample time for bug fixing and final touches.
- Ensure all assets used are either created by you, provided for free by sponsors, or downloaded for $0 to comply with jam rules.
- Consider making a web build (HTML5/WebGL) of your game to allow for instant playability by judges and other participants, potentially increasing feedback.
- Disclose the ethical and legal use of any AI tools in your game development process as per the jam's guidelines.
Frequently Asked Questions
How do I add collaborators to my game submission?
Everyone on your team must join the jam on Itch.io. You can add collaborators in the project settings when creating your game submission page.
What are the rules regarding asset usage?
You can use any free assets, including 'name your own price' assets downloaded for $0. Paid tools are allowed if you legally own them. Assets made free specifically for this jam by sponsors are also permitted.
How is the theme incorporated into the game?
The visual theme is an image provided at the start of the jam that you should incorporate into your game. Only the visual theme counts towards your theme score.
Can I use AI tools in my game development?
Yes, AI tools are allowed as long as they are used ethically and legally, and you clearly disclose their use in your submission.
What is the 'Trick-or-Treat' mechanic twist?
This refers to two abstract mechanics provided at the start of the jam. You can choose to implement neither, one, or both for fun, as it does not affect scoring.
