[Max]

Wait, so is this game actually proprietary in the end (or has proprietary components)?

Hi Wuzzy! Sorry for the delayed response, I don't check the forums very often, but someone on the Solarus discord was kind enough to bring this to my attention. Yes, Ocean's Heart does have proprietary components. I appreciate your help with beta testing and I'm sorry about this misunderstanding, but it was always going to be a commercial game. I don't think I ever said otherwise, and several posts in this thread are actually regarding how there will be some assets I will freely share.

That said, the Ocean's Heart tiles that I released for free are actually included by default when you download Solarus now. Additionally, I've been working on a much bigger, more extensible, and comprehensive set of code and assets for a few years. It's designed to be used to help someone make a Zelda-like game, whereas Ocean's Heart just _is_ a game and isn't as useful.
You (and anyone else interested) can check out the free Trillium resource package here:
https://gitlab.com/maxmraz/trillium

Generally, the features of Ocean's Heart are all added as systems here, totally rewritten to be much better and more stable. Additionally there's a whole bunch more systems I've written (like a cooking system, lighting effects, entirely new enemies, etc.). I think if you wanted to use anything from Ocean's Heart, Trillium will be much more useful for you.

If there is anything specific in Ocean's Heart that you'd like to use in creating your own game, that isn't already represented in the Trillium resources, let me know!

[llamazing]

Wait, so is this game actually proprietary in the end (or has proprietary components)? The Solarus games webpage seems to suggest this.

Some points for consideration:
* A 100% FOSS license (in particular GPLv3) does not prevent commercial use and charging money for the software.
* It would not be possible to release the game on the Switch without including proprietary code. Releasing Ocean's Heart on the Switch has been a boone to the Solarus Engine and brought it some much-needed visibility.
* The vast majority of the lua scripts for Ocean's Heart are GPLv3. And as Max said, there are improved versions of the scripts included in the Trillium resource pack anyway.

Between the free tilesets, GPLv3 scripts and switch port, Ocean's Heart has produced a number of high quality features and assets to the Solarus Engine. Moreso than any other FOSS project to date, in my opinion.

Here is the license file for Ocean's Heart. The proprietary parts are listed as "All rights reserved". :

This file contains the license for Ocean's Heart.

- The Solarus engine is licensed under the terms of the GNU General Public License
in version 3. Information and source code can be found at https://www.solarus-games.org/

- Lua scripts are licensed under the terms of the GNU General Public License
in version 3, unless specifically licensed otherwise in the text of the script.

- Music, sound effects, scenario, level design, and graphics are created by Max Mraz.
All rights reserved.

- However, some assets in particular are licensed under the
Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0)
These can be found, among other assets, at https://gitlab.com/solarus-games/solarus-free-resource-pack

This game was made by Max Mraz.

Additional programming by Llamazing

Special thanks to the Solarus Team and community for all their help.