Licence

Bibliothèques SFML

Les bibliothèques et le code source de SFML sont distribués sous licence zlib/png. 

SFML (Simple and Fast Multimedia Library) - Copyright (c) Laurent Gomila

This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from
the use of this software.

Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim
   that you wrote the original software. If you use this software in a product,
   an acknowledgment in the product documentation would be appreciated but is
   not required.

2. Altered source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

Pour résumer, SFML est libre pour toute utilisation (commerciale ou personnelle, propriétaire ou open-source). Vous pouvez utiliser SFML dans votre projet sans aucune restriction. Vous pouvez même ne pas mentionner que vous utilisez SFML -- bien que ce soit tout de même apprécié.

Bibliothèques externes utilisées par SFML