Hello and welcome to my guide on how to get the painful 100k bricks achievement. For a better experience, consider using my workshop mods linked below.

The idea is very simple. You need to start a new sandbox game, preferably using a workshop map. Set up your storage as well as the bricks themself. After finishing with the setup, create a save file (be careful not to overwrite it later on). Now you just wait until the bricks are built and reload the save, once the building is fully done.

First of all, I'am using the 100000 Bricks Achievement map.
There I am setting up 10 of my 100000 Bricks Achievement blueprint (depending on your pc, you can place more or less, however, I found out 10 to be optimal as after that, the game starts to lag). Quick tip here, every time you place a blueprint, make sure you create a new building task:



At the same time, I am also placing the boulders mining tasks. This setup can take a few minutes, as the blueprints are maxed out at 500 bricks and even then it takes 10-20 seconds to load each of those blueprints. After everything is done, I am creating a new save file.

My set up looks like this:



To speed things up, I have set my bricktrons count to 100. This way, I am already starting with the maximum number of bricktrons, my pc can handle. If you also wish to increase your bricktron limit, use the following guide: Unlimited Bricktrons.

Considering you are using my method, you would have to reload the save file about 20 times to reach the 100k bricks. Every blueprint is about 500 bricks * 10 * 20 = about 100k bricks.
It may sound like a lot of reloads, however it is infinitely faster than doing the same process using the default sandbox maps.

Overall, it is a very grindy achievement, however, I hope this guide made your life easier. If you have any ideas on how to improve this method or any other questions related to this guide, feel free to leave a comment.