You have compiled them from sources that are NOT CC0. All of these originate here on OpenGameArt.org

• RPG_GUI_v1.png is from https://opengameart.org/content/rpg-gui-construction-kit-v10 which is CC-BY 3.0, not CC0.
• Slime_1 is from https://opengameart.org/content/top-down-rpg-slime-creatures-pixel-art, which is OGA-BY 3.0, not CC0.
• Slime_2 is from https://opengameart.org/content/fantasy-slime-pixel-monster-for-rpg-games, which is OGA-BY 3.0, not CC0.
• Slime_3 is from https://opengameart.org/content/slime-monster-pixel-art-for-top-down-rpg, which is OGA-BY 3.0, not CC0.
• chain_armor_*.png is from https://opengameart.org/content/lpc-medieval-fantasy-character-sprites, which is CC-BY-SA 3.0, or GPL 3.0, or OGA-BY 3.0, but not CC0.

The only one that is CC0 is dungeon_sheet.png: from https://opengameart.org/content/a-blocky-dungeon but like the others, it is already here and does not need to be submitted again when nothing new has been added to it.

Thank you for attempting to share, but please be careful when taking assets from the internet. You can get into legal trouble if you use assets without giving the authors the required attribution.

<Vous les avez compilés à partir de sources qui ne sont PAS CC0. Tous ces éléments proviennent d'ici sur OpenGameArt.org

• RPG_GUI_v1.png provient de https://opengameart.org/content/rpg-gui-construction-kit-v10 qui est CC-BY 3.0, pas CC0.
• Slime_1 provient de https://opengameart.org/content/top-down-rpg-slime-creatures-pixel-art, qui est OGA-BY 3.0, pas CC0.
• Slime_2 provient de https://opengameart.org/content/fantasy-slime-pixel-monster-for-rpg-games, qui est OGA-BY 3.0, pas CC0.
• Slime_3 provient de https://opengameart.org/content/slime-monster-pixel-art-for-top-down-rpg, qui est OGA-BY 3.0, pas CC0.
• chain_armor_*.png provient de https://opengameart.org/content/lpc-medieval-fantasy-character-sprites, qui est sous licence CC-BY-SA 3.0, ou GPL 3.0, ou OGA-BY 3.0, mais pas CC0.

Le seul qui est sous licence CC0 est dungeon_sheet.png : de https://opengameart.org/content/a-blocky-dungeon mais comme les autres, il est déjà là et n'a pas besoin d'être soumis à nouveau lorsque rien de nouveau n'y a été ajouté.

Merci d'avoir tenté de partager, mais soyez prudent lorsque vous récupérez des ressources sur Internet. Vous pouvez avoir des ennuis juridiques si vous utilisez des ressources sans donner à l'auteur l'attribution requise.>