🔗 SOLARUS
[img[https://www.solarus-games.org/img/homepage-image.webp]]
Solarus is a free and open-source game engine for 2D games, licensed under GPL v3. It is written from scratch in C++ and uses SDL2. Consequently, it is compatible with a large set of platforms. You can explore the source code if you're curious.
The engine itself does not contain any copyrighted code or assets. Thus, Solarus cannot be eligible for a DMCA from anyone, including Nintendo.