Questions tagged [factorio]

A real time strategy game first seen in 2012 that revolves around preparing a new planet for colonization. The game is currently available on Windows, Linux, and macOS. Use this tag for any version of the game.

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25
votes
4answers
26k views

How on earth (or whatever planet it is) do I win, or even survive, on level 3?

At the beginning of level three, I am dropped in an area with no resources and told to defeat a large biter nest with just what I can create with my starting resources. I can't figure out how this is ...
23
votes
1answer
8k views

How does splitter sorting work?

In comments to another question, user Marc C posted a very interesting contraption: [Animated version] This device manages to separate two mixed belts with copper and iron plates into 4 belts, two ...
19
votes
4answers
61k views

Is there a way to remove a lot of trees efficiently?

My base is in a pretty forested area and I have to cut down trees before I build pretty much everything. Is there something I can research or build or whatever that will allow me to get rid of a lot ...
19
votes
2answers
6k views

Does increasing Game Speed count as using cheats in Factorio?

I know this is a silly question but when I am idle and just waiting for some thing to complete production or researching science for the matter, I want to increase the speed of the game. I am used to ...
19
votes
3answers
9k views

What's more eco-friendly: Steel furnaces or Electric furnaces?

Steel furnaces cause far more pollution than electric furnaces. However, electric furnaces use up energy, and when I burn coal (or solid fuel) in boilers to power these, I am also causing pollution. ...
19
votes
1answer
3k views

Is there an edge to the Factorio map?

Whenever I play Factorio I have never seen an edge to the map. I assume it must be procedural. Is there a maximum size to how far the map will extend, either in any one direction or in total area?
17
votes
3answers
2k views

Can you control what ore a drill harvests when it's placed over multiple ores?

I'm trying to harvest the maximum amount of uranium possible from a small patch. Unfortunately, there is a bordering coal patch nearby as well, and two of my electric mining drills are within range ...
16
votes
2answers
3k views

What is the benefit of storing water in tank?

What is the benefit of storing water in tank instead of driving it directly into boilers and steam engines?
15
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2answers
4k views

Is it possible to place an outgoing underground belt first?

I wonder if it is somehow possible to place the outgoing part of an underground belt first, because sometimes i build my belts backwards and it would be also useful to split the right and left side of ...
15
votes
3answers
17k views

How many people can play multiplayer factorio together?

I played factorio with friends yesterday, we were able to play with 5 people together in the same map very consistently, but the sixth player kept timeouting and making the other players lag. We're ...
15
votes
2answers
7k views

How can I convince my logistic robots to maintain depots for goods I request for myself?

My base has grown quite large and I spend a lot of time keeping the surrounding free of annoying tree-hugging eco-terrorist hippies alien scum. I covered my whole base with a logistics network and ...
14
votes
2answers
13k views

How do I create tier 3 science packs in Factorio?

There was a research item to allow you to craft Tier 2 Science Packs, but there doesn't seem to be any research to enable the tier 3 science packs and some of the research items now require them.
14
votes
3answers
6k views

Is there a way to queue items to the front of the crafting queue?

Sometimes, before I have automated a production line, I have a few items in my crafting queue, e.g. a bunch of Science Pack 2. Then I realize I'm missing a few pieces of transport belt. I'm aware ...
14
votes
1answer
1k views

Is there a way to fully load a turret in Factorio?

For the defense of my factory I use Gun Turrets. I've got a belt with magazines running past them. However when there are a lot of biters/spitters coming the belt can't provide fast enough so some ...
13
votes
1answer
2k views

How is total raw calculated for Science Pack 2?

I don't understand how the total resource needed is calculated to produce one Science pack 2 (green one). According to the Factorio wiki, Science pack 2 requires: 1 Inserter 1 Transport belt ...
13
votes
3answers
6k views

What is the point of trains?

In Factorio I think you're meant to use trains to transfer materials over large distances, such as in the campaign where there is a mining outpost some distance away and you're meant to use a train to ...
11
votes
3answers
4k views

How to signal this train junction properly?

I've followed a few videos on train signalling for Factorio but whatever order I do the signals, both trains when in the stations will constantly say "No Path" until I remove all the signals at the ...
11
votes
1answer
768 views

Richness value on Enemy base

In the Create new World settings tab, you can change the richness of the enemy base. I know that we had alien science pack in early builds of the game. But does changing the richness of enemy bases ...
11
votes
1answer
3k views

How do I design a combinator circuit to keep track of a train's contents, even when not at the train stop?

I'm trying to design a combinator circuit that will will output a signal with the train's content while a train is at the train stop (i.e. the same signal as the train stop's "Read train contents" ...
10
votes
1answer
10k views

How can I save an item to a hotkey?

I remember seeing this in one of the tips you get when you start a game, but I can't find it again. You're supposed to be able to "save" an item to a hotkey, so that no other items get placed there, ...
10
votes
1answer
1k views

What is the fastest way to start a forest fire?

Trees are the bane of my existence. They get between me and my resources that someone put in the ground. There are two ways to remove trees quickly and gain access to the minerals that feed rocket ...
10
votes
1answer
8k views

How can I encourage alien expansions?

I made a map intended purely as a sandbox for designing factory layouts, with peaceful mode, rich deposits, and water only in starting area. Apparently I also chose (or effectively chose) to have ...
9
votes
2answers
5k views

Disable enemy attacks in Factorio

Is it possible to enable "Enemies never attack first" option in an existing save game? Could I modify a specific file to achieve the same?
9
votes
3answers
3k views

Is there a simpler way to ensure that two inserters always fire at the same time?

I have built a simple factory that produces construction and logistics robots. However, since these robots get made very quickly (they only take half a second), the bottleneck is currently my ...
9
votes
1answer
5k views

How do I get the most solid fuel out of my crude oil?

I got a limited amount of crude oil and want to turn it into the maximum amount of solid fuel. However, solid fuel can be made from heavy oil, light oil or petroleum gas. Should I switch my ...
8
votes
3answers
12k views

Is there a trashcan function?

I am struggling at times with vastly too much of a specific type, such as coal in storage, during free play and missions. Is there a trash function or disposal method built in without mods that can be ...
8
votes
1answer
2k views

Factorio graphics bug; black background

Since a few days everytime I start Factorio on my PC there is no map background (everything except items like ores is black). When I move the mouse randomly over some buildings the information tab is ...
8
votes
1answer
8k views

How to access Factorio technology list

So I just built a lab (laboratory) in Factorio and I got a list of technologies. I selected one and it disappeared. I wanted to change my mind and select a new one but I am unable to click the lab to ...
8
votes
1answer
4k views

What does the purple progress bar mean for electric drills?

With the .15 release of Factorio, nuclear power has been added. With this, came uranium ore. I just began harvesting some uranium with my electric drill, and noticed that there is a purple progress ...
8
votes
2answers
8k views

What is the best way to mass produce science modules in Factorio?

I am getting tired of making the science modules (used to research new technology in the game) by hand, so how do I mass produce them using the Assembly Machines? I have plenty of the main resources. ...
8
votes
1answer
3k views

Why do Biter Spawners appear inside my base in Factorio?

I was playing a map with fixed max width to 400 and unlimited height. I placed boundary walls north and south of my base. My base was not that big since I was playing single player all the time. When ...
8
votes
1answer
1k views

Programming the game of life?

At 2:00 in the official trailer, the narrator explains that you can "even program the game of life, if you like". What does this mean ? Is he referring to a game feature ?
8
votes
3answers
11k views

How to obtain Solaris achievement?

Solaris: Produce more than 10 GJ per hour without the use of Steam engines. I've around 3.5K solar panels, but I can't unlock the achievement. How many are needed? Does it require to remove steam ...
8
votes
2answers
20k views

How to always keep steam turbines running at maximum performance using nuclear power?

In version 0.15.0, Steam Turbines were added to the game. They are significantly more powerful than steam engines (1 steam turbine is equal to ~10.5 steam engines), but I'm finding it difficult to ...
8
votes
2answers
4k views

Efficient use of Construction Robots

I often find myself constructing things using blueprints because it's so much easier than laying multiple things by hand. I was recently doing this at a remote mine site, that I had connected via ...
7
votes
2answers
3k views

Transfer everything in inventory to Chest

Is there any hotkeys or ways I can use to move everything in my inventory to a chest quickly? Basically I know if you do Shift-Click it moves the selected stack to the chest (or another item that ...
7
votes
1answer
979 views

Easy pole placement over long distances

Whenever I want to place poles over long distances and try to maximize their wire distance to save poles, it is difficult to do so. Is there anyway which allows you to hold down LMB and only place ...
7
votes
2answers
5k views

How can I monitor circuit network signal values?

I'd like to see what are the actual values of signals in the circuit network. This would be useful for both troubleshooting and to actually have an easy way to count items in storage chests, ...
7
votes
1answer
12k views

Is there a way robots (from robotport) fill turrets with bullets?

I have a lot of gun magazines and logistic robots. Is there a way I can instruct the robots to fill my turrets automatically with ammunition?
7
votes
1answer
1k views

Why do explosive rockets claim to do less damage?

According to the in-game stats and all the wikis I've found, the two types of rockets are: Rocket Damage: 60 Explosion Explosive rocket Damage: 40 Explosion Why would I want to research ...
7
votes
1answer
2k views

Is there a limit to the number of wagons a locomotive can lead?

Is there a limit to the number of wagons a locomotive can lead? If so what's this number? Is there a way to circumvent it?
7
votes
1answer
844 views

Relieving Oil Stress .15

In order to allow as much heavy oil being refined I am storing excess petroleum and light oil. For this question, lets assume strictly petroleum. The wiki recommends creating solid fuel. But I don't ...
7
votes
1answer
3k views

How do accumulators factor into the power grid?

I understand how accumulators work, but I don't understand the "math" behind them. For instance, one steam engine can produce 510kW of power. Accumulators seem to measure in joules (I believe that ...
7
votes
3answers
1k views

Have saved games been compatible after patches?

Has Factorio, in the past development, allow saved games to be migrated between different versions? If so, are there exceptions or restrictions? In a general way, how was save game compatibility ...
7
votes
1answer
11k views

How many missions/levels are available in campaign mode?

I have played the 'tutorial' mission and it was quite fun! I bought the game and started the next mission (campaign mode). I'm at level 2 now and wonder how many levels exist in the current Version(0....
7
votes
1answer
289 views

What's the recipe for steam from boilers and heat exchangers?

Intermediate fluids like heavy oil have a recipe description in the wiki that looks like this: but the page for steam does not. For boilers, what is the exact quantity per unit time of coal consumed ...
6
votes
2answers
15k views

Why does this steam engine fail to run?

A major update for Factorio was released the other day (version 0.15). One of the many changes included a change to how the boiler looks. Boilers now take up a lot more space than before, and also ...
6
votes
3answers
520 views

Does refactoring have a cost besides time?

I built a largish setup to create Science Pack 1's, then tried to add onto it to create Science Pack 2's, and realized that it would be difficult to squeeze everything in; so refactoring is probably ...
6
votes
2answers
6k views

Is it possible to automatically launch a rocket (with satellite)?

The question is pretty self-explanatory. I have set up my factory in such way that it automatically creates a rocket and stuff a satellite in it. However, I still need to press the Launch button ...
6
votes
1answer
1k views

What makes aliens stronger?

What exactly makes aliens stronger? Is it based on the in-game time, the technologies, the overall pollution or other factors I didn't mention?