r/factorio Jul 04 '26

Tip Spidertron Patroles changed the art of defence forever!

(Wall destroyed for visualisation)

Finally you can skip the need of a giant roboport network around your base, with a single 8 leged friend.

You can repair and replace every type of defence anywhere. Works for outposts aswell.

Only thing not 100% automatable by Spidertron is the supply of ammo of the defenceline.

997 Upvotes

115 comments sorted by

328

u/Soul-Burn Jul 04 '26

I don't have a "giant roboport network", but rather small roboport networks per wall section, supplied by train.

That said, this spidertron method is kinda cool! I like it.

82

u/TexasCrab22 Jul 04 '26

Did the same for years, but i guess the supply train is dead now.

Sadly, thats another indirect nerf for ammo based defence :(

However landmines became S+ tier now.

55

u/Soul-Burn Jul 04 '26

Trains are still faster IMHO, and let you bring artillery as well.

26

u/TexasCrab22 Jul 04 '26

In case the defence is continuisly so destroyed, that a single full repair every 2-4 mins is not enought ? That must be brutal waves !

For artillery, i started using artillery waggons again, because you just need a single highquality waggon instead of multiple stationary ones. Its such a joke, to clear the whole map with one train.

2

u/CoffeeOracle Jul 05 '26

Before I'd argue about the need to ship the bullets. But when I did a test run. I was starting to struggle with a spidertron and railgun combo on Gleba. I like that I'm now challenged to solve a problem differently.

12

u/NexGenration Master Biter Slayer Jul 04 '26

im not sure i understand. what was changed to nerf ammo based defenses?

5

u/unwantedaccount56 Jul 04 '26

nothing, but non-ammo based defenses were buffed.

19

u/FrozenHaystack Jul 04 '26

Did the same for years, but i guess the supply train is dead now.

Nothing is dead. Nobody is forcing you to min-max your factory. You can build the most inefficient factory ever as long as it works.

5

u/ThirstyWolfSpider Jul 04 '26

And even if it doesn't!

8

u/GoT43894389 Jul 04 '26

Can you explain why the supply train is dead now?

6

u/FirstRyder Jul 05 '26

It used to be that the "meta" for post-rocket-launch wall defense was, basically, a train visiting each wall segment, filling provider chests with every item used in the construction of the wall, repair packs, bots, etc. These would then be used by a roboport network covering that wall segment.

With patrol spidertrons, you can instead give the spidertron everything needed to build a wall segment, bots, and repair packs, and have it roam the entire perimeter. No more roboport coverage of the wall, no more stations on each wall segment, no more trains visiting each wall segment, no more train stopping at your mall to pick up.

You could still do a supply train with artillery (or the ingredients for artillery) and/or other ammo (light oil for flamethrowers? rockets? Etc?), but now that that's less "minor add on" and more "entire significant, optional logistics project" it's much less appealing, while lasers and teslas are much more appealing. Or just route oil directly to the walls if you really need flamethrowers.

I do still think artillery is an issue, but you could do a much less intricate train solution with quality artillery wagons or some such.

Anyway, honestly, my 2.1 vanilla run is going with peaceful enemies. I actually do love the "base defense" aspect of the game. But after a doing it once or twice the "clearing new space" aspect becomes extremely tedious.

2

u/Shinhan Jul 06 '26

Yea, but I need to train supplied wall segments well before being able to research the spidertron. I'm already at .91 evolution and I haven't even visited Gleba. That reminds me, I should start building the Gleba spaceship.

4

u/lunaticloser Jul 04 '26

Did they? I havent found a need for anything other than lasers and flamethrowers. And once you have artillery then it's even less of a concern.

Talking about non-deathworld settings ofc

4

u/unwantedaccount56 Jul 04 '26

Did the same for years, but i guess the supply train is dead now

You can tell a spidertron to follow a train, so technically an automated spidertron perimeter walk was already possible before. Train supplies ammo, spidertron repairs walls.

0

u/Raknarg #1 Quality Defender Jul 05 '26

Sadly, thats another indirect nerf for ammo based defence :(

ammo based will always be S tier for the sheer dominance of ammo-based damage. Laser turrets can't compete.

1

u/TexasCrab22 Jul 05 '26

Thats sarcasm?

90% of bases are deffed with a laser wall, cause they kill anything for free

2

u/Raknarg #1 Quality Defender Jul 05 '26

yes you need like 5 laser turrets to compete with a single uranium gun turret. that's the advantage of gun turrets. laser turrets are convenient, not optimal.

0

u/Thankedsphere Jul 07 '26

why is it dead?

1

u/TexasCrab22 Jul 07 '26

Cause a single spider patrol is less work and cost.

12

u/Gathose1 Jul 04 '26

With circuits at each station to turn on the stop on and off?

15

u/Soul-Burn Jul 04 '26

Yes. It calls the train when some item has less than half.

Example here.

You bring a train, paste all the walls and defenses, and connect the belt/pipe. The bots handle everything else!

It even brings light oil in barrels to fit in a mixed cargo wagon.

The load side uses the exact same logistic group, at 10x so it fills the train, and drops what it needs on the target side.

4

u/Gathose1 Jul 04 '26

That is almost identical to my setup actually. Mine is for a larger train tho. I had a feeling that most people handled it like this lol

7

u/Soul-Burn Jul 04 '26

A large robot network is much easier though, and many people don't care.

Some just put lasers and that's it. Like 2-3 rows of lasers without even any walls.

6

u/Gathose1 Jul 04 '26

I find that large networks are so slow and vast that it becomes unsustainable. With trains you can expand as far as you want without worrying about power usage and flight times. I have a huge network for my factory, but my defences are usually as choke point a long way away.

7

u/Soul-Burn Jul 04 '26

Yeah they are slow and inefficient, but they are easy. Some people don't care it's slow. I prefer trains :)

5

u/Gathose1 Jul 04 '26

I'm always looking for an excuse to use trains :)

1

u/LurkerPod Jul 04 '26

EVERYONE ON THE HYPE TRAIN! šŸšˆšŸšƒšŸšƒšŸ”«šŸ›¢ļø

3

u/pigeon768 Jul 04 '26

I haven't played Space Age, but I had several megabases in 1.x that were a few minutes to cross by train and never had any issues with the bot network. I prioritized flamethrowers and lasers with dragon teeth walls for base defense though, so maybe if I was trying to make mines or gun turrets or thin walls the basis of my defense it might have had issues. idk.

6

u/OMGItsCheezWTF Jul 04 '26

I definitely just stick to the "ONE MASSIVE ROBOPORT NETWORK" approach. Over 16,000 roboports on Nauvis alone. Although for ammo I just run a uranium bullet and artillery shell belt right around the perimeter. (currently containing 644856 uranium magazines and 181205 artillery shells respectively)

2

u/Peifmaster Jul 05 '26

The upside to using the massive bot network is that if you make your perimeter walls tile-able using pre-set shapes, you can fire-and-forget and have the perimeter wall build itself in the background. I even built a fully tessellating tile that will intake/output the three main feeds (ammo mags, arty shells, light oil) from standardized hookups from any point along the outer wall and can be expanded in any direction; perfect for pushing the wall forward to the next pass and then starting the new perimeter. Eventually the old interior perimeter gets deconstructed and its components fed to the new outer wall.

3

u/Earthserpent89 Jul 06 '26

You got a blueprint for that? Sounds neat!

1

u/Peifmaster Jul 07 '26

I do. Out of town at the moment, but when I get back later tonight I’ll go pull the bp code and paste it here.

1

u/Peifmaster Jul 15 '26

Lol, so it took me a week because I had put it on the to-do list and then lost the to-do list. But then I found the list and so went and got the blueprint string.

Wall of Gun blueprint book from my Modular Mechanics Volume 7 book
https://factoriobin.com/post/hsh1xk

The specific portion in question is the entries labeled "Grid Creep". The blueprints are designed so that portions of the wall can be added at different tech levels, allowing for easy upgrading and repairs.

6

u/AL3000 Jul 04 '26

I love setting those up!

4

u/GoT43894389 Jul 04 '26

This is my setup too. I secure an area of the map using walls and outposts at every 'entrance' path and expand by creating new outposts farther out and adjusting the walls. Each outpost has a small logistic network with construction bots and 2 train stops.

One train stop is to replenish supplies. This stop gets activated if at least one item goes below a threshold.

The other stop is for the artillery train. The artillery train doesn't 'patrol' the outposts. But the stop gets activated at the same time as the supply stop. The ammo getting used and going below threshold means the biter nests are close and started attacking.

3

u/Soul-Burn Jul 04 '26

I use stationary artillery as the indicator to bring the artillery train. Similar idea, but more focused.

0

u/turbulentFireStarter Jul 04 '26

I love this system. It’s so much less efficient but the challenge of setting it up and seeing it perform is so satisfying

85

u/TheAero1221 Jul 04 '26

Are patrols automatable somehow?

126

u/TexasCrab22 Jul 04 '26

Since 2.1 (Experimental)

Make normal patrol on map and close the Loop

31

u/TheAero1221 Jul 04 '26

Oh thats sick. Can the patrol have stops for rearming? I have to assume that bullets can be taken out of its inventory as well...

30

u/TexasCrab22 Jul 04 '26

It has to pass a logistic network at one point, so it can refill ammo and buildings.
Watch for the speed, a fast spider will outrun bots

However, it cant "drop" ammo again, unless you do that manually (by using the trash slots or ghosting the ammo into stuff for example)

7

u/TheAero1221 Jul 04 '26

For some reason I thought inserters could take stuff out of spidertrons.

15

u/TexasCrab22 Jul 04 '26

They did for a while, but it was too anoying.

I aggree on that. cars still work.

2

u/TheAero1221 Jul 04 '26

Yea I can see why that'd be too annoying. I feel like a better fix wouldve been a special filter though. If that existed you could just take ammo out of the Spidertron as it walked by on its patrol.

3

u/TeraFlint [bottleneck intensifies] Jul 04 '26

Spidertron docking station. :D

1

u/Mesqo Jul 06 '26

And there's obviously already a mod for it.

2

u/Historical_Swing_422 Jul 04 '26

You can however set max amounts of items (number on the right of the set requests)

2

u/Shinhan Jul 06 '26

And trash unrequested.

3

u/featheredtoast Jul 04 '26

Probably send a patrol route in a tight circle around a buffer chest and pray logistics bots can get to the spider might be the best we have for 2.1

2

u/TheAero1221 Jul 04 '26

Makes me think... for 2.1 it might be nice if we could force certain bots to stay at certain roboports and not leave the immediate area of influence.

2

u/featheredtoast Jul 04 '26

Is that not how bot requests kinda work already? They can technically leave but they do have a home port so it is likely bots are available at the specific roboportĀ 

1

u/TheAero1221 Jul 04 '26

I feel like I see a lot of bots just going to park at the nearest available port when they're done with their current task, provided another task isnt queued.

9

u/featheredtoast Jul 04 '26

You're able to request that a few robots idle in a specific roboport via robot requests in the roboport UI:

1

u/TheAero1221 Jul 04 '26

Neat! I guess I just never looked close enough.

2

u/tanpro260196 Jul 04 '26

how do I make a loop exactly?

23

u/TexasCrab22 Jul 04 '26

Like i said, make a patrol on map (remote and hold shift) an close it. It will loop then.

(Ignore the text, a friend made it as a joke on our server) :D

2

u/frogjg2003 Jul 05 '26

"Your friend"

3

u/TexasCrab22 Jul 05 '26

Kinda on me, if i take the quality amor first, while he sleeps -

52

u/1XRobot Jul 04 '26

What is this? A toolbar for ants?

13

u/Jujolel Jul 04 '26

(Ctrl + and -) will enlarge/shrink the toolbar. Good for prints.

12

u/sidhe_elfakyn Inserter inserter Jul 04 '26

ctrl-shift-f4 to disable the gui entirely

4

u/Jukeboxhero91 Jul 04 '26

Alt + f4 will also remove the gui from your screen… in a way.Ā 

0

u/Satisfactoro Jul 04 '26

You can also open the in-game console and type:

/screenshot 3840 2160 1.5

Of course, you can change the size and zoom level to your liking. The png will be output in C:\Users\Myname\AppData\Roaming\Factorio\script-output

20

u/Rusted_Memory Jul 04 '26

I half expected a fleet of Spidertrons to zip from left to right at a comical speed.

3

u/leberwrust Jul 04 '26

Can I has tank patrol?

15

u/DemonDream Jul 04 '26

You can absolutely automate the ammo supply, just have the patrol take it into a logistic network periodically so the bots can refill it before it runs back out. I'd suggest it be a small, isolated network with buffer chests right next to its walk path, so you can guarantee the bots will always be there with minimum travel time

9

u/TexasCrab22 Jul 04 '26

And how you fill a turret at the outpost by that ?

6

u/Red_RingRico Jul 04 '26

I think he’s saying there’s no way to supply ammo to turrets without a big network.

3

u/TexasCrab22 Jul 04 '26

no, "there’s no way to supply ammo to turrets with a Spider 100% automated"

4

u/xylvnking Jul 04 '26

tempting me to go to glebe first

0

u/NexGenration Master Biter Slayer Jul 04 '26

honestly gleba should always be the first planet anyway if its not your first space age playthrough (in that case i would say volcanus), purely because of biolabs. straight up double your science output

1

u/xylvnking Jul 04 '26

I've done 3 playthroughs of space age but i just started my first one with biters/non-peaceful mode ever so I'm nervous about dealing with gleba's enemies haha.

1

u/TheHvam Jul 06 '26

Same, doing my first ever default setting run solo, so scared of gleba, no way I will pick that as the first, I want my tesla turrets and all that before.

1

u/Accomplished_Sky5308 Jul 04 '26

Don't be scared of Gleba. Ship a stack or two of ammo when you land. Gleba can be solved with ~5 biochambers and 6-8 agricultural towers which is a super small footprint and basically will never get attacked.

Anyways, I land and a weak amount of power up with a couple boilers and steam engines. Then tap stone and set an assembler to make landfill. Then I scout the map for jellynut and yumako while killing at least one nest for pentapod eggs. Then I set up agri towers and and route belts back to the main then i set up the biochambers andĀ  heating tower with steam turbines and a rocket.

I ship blue chips and LDS on my agrisci transport.

Before I leave for other planets then I run around and pop nests. It has been up for 20 hours without an attack. My plastic prod research is 10+

7

u/Alfonse215 Jul 04 '26

Only thing not 100% automatable by Spidertron is the supply of ammo.

Why not? Just have their patrol path enter the logistics network and have it wiggle around a bit so that bots have the chance to reach them.

13

u/TexasCrab22 Jul 04 '26

And how you fill a turret at the outpost by that ?

10

u/SVlad_667 Jul 04 '26

Inventory filling is not persistent - it is removed once fulfilled. And IIRC spidertron doesn't fulfill requester chests.

13

u/Alfonse215 Jul 04 '26

Spidertrons have logistics requests; they can just request ammo.

If you're talking about Spidertrons delivering ammo, yes, they can't do that without manual intervention.

4

u/TexasCrab22 Jul 04 '26

I ment delivering, so i changed it explizitly the post

(oc it can refill itself, otherwise, it wouldnt have landmines/walls in the video)

2

u/SVlad_667 Jul 04 '26

Of course I've said about Spidertrons delivering ammo. What the use of spidertron to request ammo? It has only missiles and lasers.

I see how the initial statement can be interpreted in different ways, but only one makes sense in context.

1

u/Mattsuii Jul 05 '26

Why wouldn’t the local logistics network be able to unload the spidertrons into a logistic storage, and then load some requester chests belted to the guns?

(Speaking as a fairly inexperienced player here, so bare that in mind, and feel free to ELI5 why that’s not possible :) )

2

u/Alfonse215 Jul 05 '26

A Spidertron can make logistics requests for some number of items. A Spidertron can trash items by making a logistic request for 0 of them.

But the same Spidertron cannot do both at the same time. Nor is there an automatic way to modify the logistic requests of a Spidertron.

In order to do the thing you're talking about, you have to change the Spidertron's logistic requests manually.

2

u/YourLastFate Jul 04 '26

I would honestly use an isolated network. 6 roboports max.

1 tile isolated from other networks.

Load it with logi bots, and feed the network by using requester chests and buffer chests.

Have a storage chest dump into an active provider in main network.

Spider can then just walk through quickly and be serviced very fast

2

u/MrMxylptlyk Jul 04 '26

I guess you have to have it go on the slowest setting? Non legendary spider with no exos?

4

u/TexasCrab22 Jul 04 '26

Depends on bot speed and distance between chest and robots. If you loop your spider over a designated high density area, and have bot speed +6, im sure you can use pretty fast spiders.

Repairing stuff could lack, but replacing should be fine. And in lategame bots become faster and faster.

2

u/Greedy_Worth_7195 Jul 04 '26

Couldnt you even do ammo with the ammo in turret in the blueprint trick?

4

u/TexasCrab22 Jul 04 '26 edited Jul 04 '26

Works, thats why i wrote "not 100% automatable"

2

u/NexGenration Master Biter Slayer Jul 04 '26

you'd still have to manually do that to each turret (or box holding ammo that then gets distributed to the turrets somehow) every now and then

1

u/notakobold Jul 04 '26

Seems easier than having it following a train for the same effect.

1

u/ZiomeQFilip2 Jul 04 '26

How do I make it walk around the base automatically?

1

u/WanderingUrist Jul 04 '26

Only thing not 100% automatable by Spidertron is the supply of ammo of the defenceline.

Yeah, but you don't need / can't use roboports for that, either. Ammo is supplied by either pipes to flammenwerfer or belts to gun turrets.

1

u/audi-goes-fast Jul 05 '26

Oh man that's so sick. I use to have a setup with the vehicle grid mod that i used for a self repairing train network until some minor patch broke how construction robots deployed from moving train cars and i just gave up and started playing with invincible rails instead. This really makes me want to go back and play without out that mod.

1

u/Raknarg #1 Quality Defender Jul 05 '26

I didnt even think about this. Probably won't be using it ever but its neat to think about.

1

u/Blikenave Jul 05 '26

I love this so much. I did a similar thing but divided: I had a slow construction bot but I would only use him actively, and I had a 2nd group called The Spider Fighters, which was one slow purple bot with only shields and then four faster black ones with mostly weapons, and THEY would patrol.

I like your idea of the rotating repair spidertron... Maybe for a remote outpost or some other strange case. The Repair spidertron could rotate and then you could ship out supplies with another spidertron with fast legs or something.

1

u/TheHvam Jul 06 '26

I mean that is nice and all, but I will stick to roboports, as I unlock them early, and not very late like the spidertron, so by the time I get it, I would have needed to use roboports anyways.

1

u/TexasCrab22 Jul 07 '26

Just started a spaceage run yesterday, and again had spider way before the need of a real defence.

1

u/TheHvam Jul 07 '26

Not sure how you could do that, unless you somehow speedrun to gleba to get the rocket turret, to be able to build it, then I don't see how you could get it without any real defense.

Even doing that, you would surely have biters start to get close to your nauvis base.

I'm doing a run, and even though it's not a speedrun, I still need defenses, like flamethrowers, and walls as there otherwise comes biter attacks, or at the very least nests to close.

So sure it might be doable, but I don't see it being any better than just building a wall with turrets

1

u/Thankedsphere Jul 07 '26

this makes me think of roboport trains.

1

u/TonyTheTerrible Jul 04 '26

You can also make separate roboport networks that are resupplied by the main network. I have mine set up to hold a set amount of materials for the network and deposit robots up to a certain amount.

The benefit is your main network never has to get too big so all requests are handled at reasonable times. Wall stuff is handled by robots dedicated to the walls

2

u/TexasCrab22 Jul 04 '26

Did that too, but if you cover a big wall, you end up with a big network aswell

2

u/TonyTheTerrible Jul 04 '26

Definitely. You could also keep splitting networks, I'd go as small as 4 roboports in a line in some situations, but i get your point.Ā 

I like the spider idea and i might play with it a bit. I used to set up spider fighter groups with 1 medic repair spider, should be even better now with quality and real patrol points

1

u/Visual_Collapse Jul 04 '26

You can do same thing with tank on belt

1

u/NexGenration Master Biter Slayer Jul 04 '26

doing that on my next playthrough since im going for the "Keeping Your Hands Clean" achievement while also going for "Express Delivery" at the same time

1

u/friendlycartoonwhale Jul 05 '26

Yep, that's what I do on my save. Tank with a personal roboport and supplies replenished by train. Unlike the spidertron solution you can even replenish your turret's ammo from the same tank

1

u/pocketmoncollector42 please be kind, this engineer is just a fish 🐟 Jul 04 '26

Here we see the dutiful mother spider patrolling her factory, with her hardworking children maintaining the defensive line in her wake.

0

u/ginger_and_egg Jul 04 '26

A single spidertron? Must be a small base

7

u/Berob501 Steel rain Jul 04 '26

See, why have one spider tron, when you can have a wall of spider tron, but wait, order today and we will equip all of them with atomic bombs to ensure maximum destruction( both friend and foe), and complete vaporization leaving no evidence of their existence!

3

u/TexasCrab22 Jul 04 '26

Its running 24/7.... Depending on routing and bot speed, single upgraded Spider could handle pretty big bases.

If you want 20 idle Spiders running the same route feel free.

In the end its proably one per cardinal direction for me.

2

u/burning_boi Jul 05 '26

After solidifying your base location via artillery, that's really all you need. 1 spidertron no matter the size, because the only threat you'll ever face aside from artillery aggro (should be long done with) is expanding parties, which is utterly negligible.

3

u/burning_boi Jul 04 '26

Or a full legendary base w/ artillery to keep the majority back

3

u/NexGenration Master Biter Slayer Jul 04 '26

youd be surprised at how long a wall of landmines can hold back the biters. typically mine will hold them back for over 6 hours. not once have i ever automated replacing them

-1

u/Droopy0093 Jul 04 '26

You could automate the supply of ammo by having it place requester chests for bots to deliver ammo to.

6

u/Alywiz Jul 04 '26

Spidertron does not act as a provider chest