mcourteaux/CraftMania — reverse-engineered prompt

Build me a small desktop voxel sandbox game in Java that feels like an early Minecraft style experience, but with its own name and original assets. I want a playable world made of blocks where I can walk around, jump, place blocks, destroy blocks, open an inventory, and toggle a simple god mode for flying around. It should also support basic lighting or torches, and an overlay I can turn on and off.

Please make it run as a normal jar for someone with Java installed, and keep the controls simple, with movement keys, mouse buttons for placing and breaking blocks, and a small config file where I can switch keyboard layout and tweak performance settings for my machine. Use OpenGL from Java for the rendering since this is meant to be a classic block game, and make sure it works without using any Mojang assets or branding.

If anything is outdated, look up current docs online and get it into a runnable state.