Sure! Here's a simple sandbox game using JavaScript that you can play as a finished game. The game allows you to create scenarios using different items such as melee weapons, guns, and barrels. It's implemented as a single HTML file and enclosed in script tags:
This game creates a sandbox where you can click to place random items (melee weapons, guns, and barrels) and then drag them around within the sandbox. You can keep adding items and arrange them in different ways to create your own scenarios. Have fun and let your imagination run wild!