One of our friends and RUST player Three3 stumbled upon a brilliant design called the unraidable base. Technically it is raidable since in RUST with enough explosive charges you can pretty much get into anything. Although it is not easy to navigate through and can be trying at times, it is fairly effective at deterring raiders. If design correctly, it would effectively require 4 explosive charges, 2 metal doors and 10 minutes per floor. We usually suggest a design that is a minimum of 7 floors which would then require a total of 28 explosive charges, 12 metal doors and 60 minutes to raid, giving you ample time if you are online to counter it. This guide will show you the basics of building a great and cost effective 3x1 unraidable base which will make it so difficult to raid, most people will avoid it or die trying.
How It Works
The basic structure is a 1x3. While you can make it out of wood, it is recommended that it be made out of metal because metal structures only allow metal doors to be attached. However, its not a bad idea to start out with a wood design given that you make it fairly tall just to make it as annoying as possible, but keep in mind that they can just as effectively replace the metal doors with wooden ones which would save them plenty of money.
After you lay down the 1x3 foundation you are going to setup three doorways, one right after the other and end the last one with a wall, then you will cap off the remaining long sides with walls. And the far end of the base with only one door you will add a stair case and on the first entrance you will cap it off with ceiling. Lastly you will place a single pillar in the center of the middle foundation. This is design so that the doors are required to cross and so that stairs can not be built in the middle.
You should know how to place the doors properly with the door hinges all facing the same side on the same floor but alternating the hinges per floor. For example, first floor all door hinges on the left side, second floor all hinges on the right side, third floor all hinges on the left side again and so on.
This is absolutely important or else you won't be able to reach the next floor. In our first attempt we had to blow up 2 door frames and doors just to fix this mistake which was super costly and could have been avoided. So how do you know which side the hinges are on? With wood doors, the hinges are on the side where the odd misplaced diagonal 2 by for is on the base of the door frame. For metal doors the hinges are identified by the small diagonal metal square piece at the top corner of the door frame which also looks out of place.
Expanding the Basics
Once you have the first floor finished, you are just going to flip that layout and repeat it over and over for each floor. ALWAYS keeping in mind that on each floor the door hinges must be on opposite sides to allow you to jump on to the open door ledge. Of-course the last floor you will want to make a cap above the middle to allow you last pillar to go all the way up to the height of your top floor. That's pretty much it.
Now to enter the base and get to the top you have to open all the doors so that they face the center pillar, after one set of doors is open you will go up the staircase, hope on the door ledge and then jump from one door to the other. Then you can open that door and make you way up the stairs to the next level and repeat. Be sure to remember that after you open a door inwards, you'll have to close it and reopen it from the inside to make sure it is facing the center pillar of the base.
So why make it 7 floors high?
Well at 6 floors, if they fall off at the 6th floor before making it to the last room, if they are naked, they will likely break their legs and perhaps bleed them which will stall them but they inevitable will get back up. If they have full kevlar they will probably break their legs but not bleed. At 7 stories tall, the full kevlar person will bleed. At 8 stories high it will kill anyone full kevlar or not. You want them to make mistakes and die, that forces them to go all the way back to your base to try again if they can at all.
After we finished our compound on the Avalon server, we had enough resources to give the Unraidable 3x1 a try. We made it a full metal structure, 9 stories high. We even tested it for sure in full Kevlar, if you fell at the 8th floor you were dead for sure. It's also great because it makes raiding at night especially difficult.
The last thing you should consider is making it secure with center pillars and foundations all around so that they can't build stair cases. Another option is to surround it with wood foundations and center pillars since they are cheaper to constructs and raiders won't be able to construct either wood or metal stair cases in between since there is minimum distance requirement between wood and metal foundations.
Our compound base was so huge and tall that we found a way to jump from the 12th story of the main base to the unraidable bases top and then jumping from that to our main bases 4th floor.