Check out the Harmony Drive SRD!

This is a nice long jam, with plenty of time for you to make the adventure game of your dreams!

Harmony Drive is a toolkit anyone can use to make a game with a medium level of crunch but a huge level of depth. Let your players make whatever spell appeals to them! Let them use their skills in inventive ways, and risk making things more complicated with Edge Successes! In a Harmony Drive game, the players have the power to choose what happens - and the GM is there to make sure the choices aren't easy. 

Three Pillars

Harmony Drive games revolve around three concepts.

Self-Expression: The spells are free-form. The combat is abstract and versatile. Players can engage with their problems however they want to, without being penalized, having to take special abilities, or being left behind by their team. They can play the game however they want, and express themselves through their choices.

Teamwork: Players succeed and fail as a team. They can put their heads together and cast enormous combination spells any time they like. They build advantage for their allies, and use that advantage to weather devastating attacks or grueling circumstances.

Difficult Choices: Will you make a stronger attack at the cost of being separated from the rest of the party? Will you create a masterpiece that will be the perfect home for a wandering spirit? Will you use your advantage in combat to defend against attacks or will you push forward to end the encounter? Players are free to make their own choices, choices which can make things more complicated later on.

Make it Yours

Harmony Drive has examples pulled from fantasy, space opera, and horror genres, but the game is yours to modify as you see fit. 

Workbooks are included to help you put your thoughts together, and there's even one for your world and its lore! If the process seems daunting, just load up a workbook and answer the questions. How do people in your world relate to magic? What kinds of power sources exist in your world? 

Make something that's truly yours, and then hand it over to your players so they can create characters that are truly theirs.

Join Us

Tweet at me and share your progress! I want to know what you're doing, and help in any way I can!

Join the Heroic Discord and post in our Harmony Driveway to share your projects with our community! I'll be there, and so will other designers eager to share in this process with you.

Rules

No Asshole Stuff. You know, no sexism, racism, homophobia, transphobia, ableism, or any other kind of bigotry. If someone tells you that you've strayed into the realm of asshole stuff, no need to go on the defensive - take the criticism and if necessary, adjust! 

TTRPGS Only. This isn't a jam for video games. Do not submit video games. 

Make a Harmony Drive Game. Your finished project might be a class, an adventure, or a whole game. The only rule is that it needs to work with the Harmony Drive system.

Paid is Okay! In fact, I encourage you to charge for your game. This is going to take a lot of work, after all - you deserve to be paid.

Any Level is Fine! A glamourous fully-illustrated manual is wonderful! A text file with an adventure written in it is also wonderful! Don't pressure yourself to try and churn out a Full On Manual.