Beginner-friendly pattern sequencer for writing game music, a Godot-based port of Terry Cavanagh's Bosca Ceoil by Yuri Sizov. This is the maintained line: the original TerryCavanagh/boscaceoil repository is archived on GitHub (read 2026-09-26), while Blue runs on Windows, macOS, Linux and in the browser.
At a glance
Licence
MIT
Commercial use
commercial OK
Credit
Not required
Status
active: License spot-checked at the source; the entry carries dated evidence.
Which Bosca Ceoil: this entry is the Blue port. The original Adobe AIR program is not listed separately; its repository is archived and Blue reimplements it
Exports WAV, MIDI and XM per the itch page (XM is not in the catalog's format list, so formats leaves it out)
The MIT licence covers the program. Blue's LICENSE also carries the original Bosca Ceoil BSD-style notice for the code it reimplements; keep both if you redistribute the program
The author, in the itch comments, on music made with it: "The tool is provided under the MIT license. This means that you can use it for both non-commercial and commercial work"
Evidence
Live itch page (2026-09-26): "Bosca Ceoil Blue is absolutely free and provided under a permissive open source license" and metadata "Code license MIT License"
Live itch page (2026-09-26): "Export your creations to WAV, MIDI, and XM. Share them with the world, or use them for your next game or video!"
Live GitHub YuriSizov/boscaceoil-blueLICENSE (2026-09-26): "MIT License", "Copyright (c) 2025 Yuri Sizov and contributors", followed by "This application is based on and reimplements code or parts of code from Bosca Ceoil by Terry Cavanagh, distributed under a BSD-2-Clause-Views license"