Join the latest edition of the ultimate web game development marathon!
The CrazyGames x GameMaker Web Jam is an online event co-organized by CrazyGames and GameJamPlus, in partnership with Game Maker. The jam will take place from September 18 to September 21, 2025, giving you the chance to bring your web game ideas to life!
This event is designed to fuel the growth of web games! Join our Jam Discord community to stay connected.
Join the latest edition of the ultimate web game development marathon!
The CrazyGames x GameMaker Web Jam is an online event co-organized by CrazyGames and GameJamPlus, in partnership with Game Maker. The jam will take place from September 18 to September 21, 2025, giving you the chance to bring your web game ideas to life!
This event is designed to fuel the growth of web games! Join our Jam Discord community to stay connected.
🥇 Word Runner — Bananacode
🥈 In Time — Bitsmitten Studios
🥉 Final Pulse — GoldenYolkGames
4 GO AHEAD! — Wagou Games
5 Double Trouble — kenanmasri
Sign up for free on this form.
Registration is mandatory to all individuals.
Create your game during the exclusive development period (September 18 to 21, 2025).
First upload your game to the CrazyGames developer portal by 11:59 pm CEST on September 21, 2025.
After submitting your game to CrazyGames, grab the link and submit it to the Indie Hero form
⚠️ Games using other engines or pre-existing projects will be disqualified.
*Publishing Bonus: Fixed fees plus revenue-sharing agreements for publishing winning games on CrazyGames.
Steam Gift Cards:
Support from both teams, CrazyGames and GameMaker, throughout the jam.
Get your game played by thousands.
Get a chance to have it published on CrazyGames.
Cash prizes and GameMaker Enterprise licenses will be awarded.
By participating, you agree to the Terms and Conditions that ensure a fair, respectful, and legally compliant event. These include requirements for originality, legal use of assets, and adherence to the development timeline.
The Jammer’s Guide provides all the essential information for participating in our game jam, including rules, schedule, development and submission tips, as well as useful resources to help you successfully create your game.
Absolutely! Solo developers are welcome to join and showcase their talents independently.
Yes, you can use pre-made assets, provided they are legally obtained and properly credited within your game. AI are also allowed.
Unfortunately, late submissions will not be accepted. It’s essential to manage your time effectively to ensure you submit your project on time.
All games are welcome to be submitted at the end of the jam! However, please note that they will go through our regular content review process.
Yes, team formation is flexible, and you can assemble or modify your team at any time during the event.
Yes. Limit of 6 participants per team.
Winners will be selected based on criteria outlined in the game jam manual, including creativity, gameplay, and adherence to the theme. The judging process is at the sole discretion of the organizers.
The cash prize will be given to the team representative, who will be responsible for distributing it among the team members. The organizers are not responsible for any disputes related to the distribution of prizes within teams.
Regarding the GameMaker prize, each team member will be awarded a license.
No, registration for the CrazyGames x GameMaker Web Jam
is completely free of charge.
The organizers reserve the right to modify, extend, or cancel the event in case of unforeseen circumstances. Any changes will be communicated as soon as possible.
Yes, the event is online and open to participants worldwide. However, all timings will follow the CET/CEST time zone.
Yes, all intellectual property rights to the game remain with you. The organizers will not claim ownership of your game but may use it for promotional purposes related to the event.
The official communication of the jam will be conducted via email.
The jam will be held online. Access to the official Discord is not mandatory, and the server will be used as a multilingual hub for team formation.
Yes, the jam is entirely online. You can participate from anywhere in the world, as long as you have an internet connection.
You can connect with fellow jammers and find potential teammates on our CrazyGames Discord community. It’s a great place to share ideas, collaborate, and build your team.
No, accepting the agreement bonus is not mandatory. You are free to decline any publishing offer if your project is selected.
There are no prizes for participation alone. Prizes are only awarded to the winners.
The jam is organized by CrazyGames, GameMaker and GameJamPlus/Indie Hero. We are excited to bring together developers from around the world for this event.
Yes. Your game must be developed using the GameMaker engine.
No. Only winners and those invited to post their game on the site will need to include the SDK.
For more information and support, join our Jam Discord community
or send your question by e-mail support@gamejamplus.com.
Important: For now, our newsletter is exclusively in Portuguese!