OST Composing Jam: Overtime

Hosted by Lone Rabbit · #OSTCompJam

Joined

Overview

Community

Submissions open from 2026-04-30 23:00:00 to 2026-05-31 22:59:59

Starts in

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You have a month to make an hour of soundtrack.

Up for the challenge?

Welcome aboard.

INTRODUCTION

OST Composing Jam is back with another format, and this one's for those who can't get enough jam. Because of the nature of this jam, collaboration is strongly recommended to make one cohesive, complete soundtrack. You can find teams on our Discord server.

This jam will be unranked, meaning there will be no rating system, the main system will instead be giving feedback and comments. We also plan to organise a listening session of all the submissions at some point after the jam.

ABOUT

Hey there, and welcome to OST Composing Jam!

This is a place where musicians of all skill levels come together to write soundtracks for imaginary games just for fun, growth, and creativity. It started as a small idea and has now become one of the biggest music jams on Itch.io. Whether you're a seasoned composer or trying this for the first time, this is a space to explore storytelling through music, push your creativity, and be part of a supportive community of like-minded artists.

THEME

TBA

(Choose either the text theme or the picture theme, or both!)

artwork by TBA

Note: The themes here are more like an inspiration, and strictly speaking there are no specific "musical theme" for you to follow and that you can compose in any genre you want, so the submissions can be as diverse as possible.

RULES & FAQ

How long?	at least 1 hour (entire soundtrack combined)
How many tracks?	as many as your heart desire
What do I need to submit?	When creating the project on itch.io, you will need to upload the following: • .mp3, .wav or .flac file of the track(s) ○ The title of the file should also have your username on it (e.g. Lone Rabbit - Great Example.wav) • Screen recording or screenshot(s) evidence of your DAW ○ Uploaded as screenshot(s) or mp4 file on itch.io ○ Or to YouTube as screen recording ○ or as .pdf if a score on itch.io • Cover art (optional but ideal to differentiate your submission) ○ The cover size on itch.io is 630x500 px ○ If you are using the picture theme as your cover art, please always credit the artist in your description. ○ If you are using an AI-generated image, please do not use the picture theme as an image prompt as some artists are uncomfortable with that. When submitting to the jam, you will be asked for the following: ○ Description of entry (e.g. genre, software, inspirations, your process, etc.) ○ Chosen theme ○ How does it fit the theme? (optional) ○ Link to streaming service of your choice (preferably SoundCloud or YouTube) ○ Soundtrack use permission. ○ Your contact information

Question	Answer
Q: Will there be any themes?	A: Yes, there will be a picture and word theme (choose one or both) announced at the start of the jam.
Q: What program/DAW can I use?	A: You can use any programs, DAWs, or Trackers you want. You can even handwrite your scores and perform it yourself.
Q: Can I work in teams?	A: Yes
Q: Can I use pre-made loops?	A: Yes, as long as the majority of the work is still your own composition and arrangement.
Q: How about samples and sfx?	A: Yes, but please make sure you have the legal rights to use them.
Q: Can I submit a soundtrack for a game that already exists?	A: No, it is required that all participants compose an original soundtrack for a game that does not yet exist before the jam.
Q: Can I submit multiple entries?	A: Yes. I dare you.
Q: When can I start?	A: When the jam starts! You can check when the jam starts in your local time at the top of this page.
Q: Can I use this jam to finish/submit an existing project I already started on?	A: Yes
Q: Can I use the soundtrack I composed for other projects later on?	A: Yes, we do not own anything you submit. All rights are reserved to the original composer(s).
Q: Can it be a remix?	A: No, but you can take some inspirations and ideas from them!
Q: Can I use AI?	A: Use of AI to generate composition is strictly not allowed. Use of AI as a tool/instrument such as Vocaloids and text-to-speech synthesis is allowed.
Q: I'm having trouble uploading/submitting!	A: How to upload and submit your soundtrack!

COMPILATION ALBUM

The question of whether or not this jam will have a compilation album is still to be decided. We're not sure how we will select submissions yet and we still have quite a few in the backlog to release from previous jams.

You can check out the previous jam's compilation album here!