The first thing you'll need is a macro tool. I used a free one called the "Microsoft Mouse and Keyboard Center" because I don't know better. Search online or use the Support Center to find it.

After installing and opening the Mouse Center, you should see it detect your mouse and show you all the buttons. From here, click on App-Specific Settings and find the Deadburg exe from the Steam install folder so the macro will only run when using Deadburg.

Next, create a macro. I've got a mouse with some odd unused side buttons which worked well. Basically, don't create a macro that activates with a button you use for the game, and avoid buttons you might accidentally hit.

I created two macros. The first clicks the right mouse button for 10 ms, followed by "mouse move up" 50, followed by the left mouse button for 10 ms, followed by "mouse move down" 50, and ending with another left mouse button for 10 ms. Setting that to repeat when toggled makes the macro activate and run continuously.

I also made a second macro set to a different button that is only a left mouse click followed by a 10 ms pause and toggled to repeat.

With that done, you can now open Deadburg.

In Deadburg, I created a new Creative world. Other settings shouldn't matter as long as it's a Creative world. You may want to turn down the graphics so this doesn't overheat low-end computers.

Creative mode has a tool that allows you to create a zombie. The interesting thing is that you can also destroy zombies with another click. Specifically, a right click creates and a left click destroys. After discovering this, I noticed these kills also count toward achievements ... though the game may take a moment to register the kills, so it's not always instant.

With about an hour, I got 10,000 zombie kills. I did this by flying two to three meters off the ground so I was still in range of drops, and staring down at the steepest angle before activating the first macro.

This method creates and kills zombies at a decently fast rate. You'll also end up with a lot of crafting items, so make sure your inventory is mostly empty first, and create a few storage boxes nearby.

If you spawn some accidentally that don't get destroyed because they're in a wall or something, use the second macro to kill zombies without creating more.

Additionally, I used the second macro to destroy blocks. Simply move from the zombie creation tool over to a block creation tool. Be careful with this one, because you can destroy blocks at quite a distance. Aiming near the horizon caused the game to crash once, and another time the game got slow when I had too many items on the ground.

In doing all of this, I discovered a neat trick that someone might want to use in designing a world. Simply fly up high and aim downwards at the side of a building. Activate the second macro and move the aim around in very small circles.

I think the result looks like a meteor crashed through the building!

Also, you'll reach the level cap with this method, so use that opportunity to test a character build you might not try normally.

Finally, remember to play Deadburg the normal way. This is a fun game and should be enjoyed first.