This guide will give you an idea about how underwater gameplay can look like and what you can achieve with it. I can promise a lot of fun. Also it shows how to actually build a base from where you can jump on the cargo.
Cargo Base In Rust / Jump On Cargo / Play Under Water / Counter Oil Rig
Mark Building Spot
You want to start with marking the position where the cargo passes by. Ideally it’s as close as possible to your bases on land.
It can be tough to find the exact spot, so calculate three to four cargo cycles before you are done with the raw build.
Tip: Cargo spawns randomly every 2 – 4 in-game days. So 2-4 hours per cycle roughly. If you are close to an oil rig at the same time you will even have more opportunities later.
Tip: You can only build in the actual marked grid of the map. So the furthest possible building spot is the last named grids outside line. In my case I started here where I am on the map. Close to outpost, close to our main bases at the shore and close to oil rig – perfect.
Build First Prototype From Twig
Once you marked the spot, grab diving equipment, 10.000 wood and build the prototype. As close as possible to cargo and in a way that you think you can jump on it.
The prototype will just be a platform slightly above the water surface. No need to build a base right now. You need to find out if it works first.
The further away you are from the coast, the higher the buiding will be. On full height the base will be 20 storeys high. If you are on a spot closer to shore, it can be only 12 – 15 floors high. Make sure to start with foundations and don’t upgrade them yet. Every upgrade will have a massive impact on the final upkeep.
I recommend Building Square and Triangle foundation for a start. Use double door frames on every possible foundation side to build fully up to the surface. Then attach two more regular walls in direction of cargo just to make sure they don’t get smashed when cargo passes by. The ship is a bit wider the higher it goes, keep that in mind.
Once the twig is done, you gotta wait for the cargo to come again. Make sure you repair it in case it starts decaying too much before the ship arrives.
Be on your cargo base when the ship comes. Check if it passes by VERY close but doesn’t destroy the walls you built in it’s direction. Remember that the main base needs to be close to cargo. Because of the height an instability you won’t be able to just attach floors in cargo direction later. Nothing can be attached to the base.
If cargo is further away than one foundation square, you have to go back one step and do it again. Later you can play a bit and get SLIGHTLY closer with playing a repair bench on the roof of your base. This can stick over the edge quite a bit.
Actually Build It
Once you are sure cargo drives by VERY close and you think that you can make the jump, you can either build a twig base now for a final try or go for the full base design now. Upgrade foundations on the sea ground to metal, upgrade all door frames to stone and make sure the floors of the actual base are at least metal as well.
Build an entrance on sea level, a boat garage is optional and place TC in second floor. If you want you can honeycomb later and build bunker inside. This way you can keep the base in case it gets raided.
The upkeep will be very high compared to the actual usable space. So build as compact as possible but as secure as needed. You need to be three floors above sea level in order to be able to jump on cargo without fall damage. Four to be able to jump anywhere, but you will get a bit of fall damage most likely.
Use It And Enjoy!
Once it’s done, you are free to enjoy! If you build close to oilrig at the same time, you can have a ton of fun with tons of opportunities.
Feel free to check out this video where you can see my last cargo base approach including some under water countering action with Jackhammer 🙂 I am pretty sure you will enjoy it!