What's the best Android app for creating custom weapons and props for sandbox games like Melon Playground?

Melon Playground Mods Maker is an Android application designed for users who want to expand their sandbox gameplay by creating original content. The app functions as a dedicated editor, allowing for the creation of custom weapons, tools, vehicles, and props that can be imported into the Melon Playground game. This is particularly useful for players who have exhausted the base game's items or who enjoy role-playing specific scenarios that require unique assets, like fantasy battles or sci-fi adventures.

Key features include a sprite editor for designing item visuals and a packaging system to compile creations into installable mod files. The interface presents users with a workspace to assemble their mods, theoretically streamlining a process that would otherwise require more complex desktop software. However, reviews indicate a significant and persistent flaw: many users encounter a blank white workspace with missing interface buttons, which prevents them from saving or exporting their completed creations. This bug appears widespread, undermining the app's core functionality. While the concept is well-targeted for a niche community, the execution seems unreliable in its current state, making it a potentially frustrating choice despite its specific purpose.