Hi Cleber, are you still considering small browser game projects? Harbor Shift is a playable six-level cargo-pushing puzzle prototype in HTML/CSS/JavaScript, with undo, reset and a hint. Demo: https://briefcraftlab.itch.io/harbor-shift-prototype . If that scale fits, I can discuss the current source package at an indicative US$35, subject to agreeing the included files, transferable rights and payment terms. It was built with AI assistance and its browser code is already publicly accessible, so sole possession of all copies and exclusive copyright in every element are not promised. This is an interest check, with no transfer or contract accepted. I coordinate by text at briefcraftlab26@proton.me. Briefcraft Lab