Hi Venox! I love this art pack you've shared, I went ahead and used a lot of these in a template I've published. The link is at https://lvlupper.itch.io/godot-pixel-platformer-template, I'd love to share this template with you for free if you're interested in / are currently using Godot 3. Just shoot me a DM and I'll have that ready for you since you were so kind for sharing this incredible art asset for free. I'd also love to collaborate on projects together if you're ever interested!