Factorio: Beginner's Guide & Best Tips

Introduction

Alright, so you’ve decided to click that “New Game” button on Factorio. Maybe you saw a friend’s spaghetti mess on Discord, or you heard it called “cracktorio” because it somehow steals entire weekends. Whatever got you here, strap in. This isn’t a game about winning—it’s about optimizing a factory until your brain melts out of your ears. And I love it for that.

I’ve got about 1,400 hours in this game. My first three runs ended with me manually feeding coal into boilers, wondering why my power keeps dying at 3 AM. I’ve restarted more times than I care to count, and every single time I thought, “This is it, I’ll build a bus this time,” only to end up with a tangled mess of belts that looks like someone threw a handful of dry spaghetti at a wall. But that’s the beauty of Factorio—every failure teaches you something. The moment you watch your first rocket launch, you’ll feel like you just graduated from some weird, antisocial trade school.

What makes Factorio special isn't just the conveyor belts or the bitters (though they’re a great stress ball). It’s the way the game makes you think. It’s you versus a planet, and you win by automation. If you have to do anything more than once, you’ve already lost. And that’s the high: turning a pile of iron ore into a self-sustaining empire. Yeah, the early game is slow. Yeah, you’ll die to a pack of small biters because you forgot to armor up. But when your first blue science assembler churns to life? Chef’s kiss.

I’m not gonna sugarcoat it—this game can be brutal. But it’s fair. The only thing standing between you and a 100-hour playthrough is a couple of good habits. So I’ve written this guide like we’re on voice chat, and I’m watching you build a furnace column with half a dozen goddamn splitters. Let’s fix that.

Getting Started / First Steps

First off: do not restart. I know the urge. You spawned next to a tiny iron patch, the bitters are eating your power poles, and your base is a tangled nightmare. Resist it. You can fix almost everything. The only time you genuinely restart is if your starting area has zero stone or copper. But even then, you can walk a few screens. So stop rolling new maps.

Here’s what you actually do in the first 20 minutes:

• Punch trees and rocks. You need iron ore and coal before you can even think about crafting a burner miner. Your pickaxe is your enemy. Replace it with a stone one immediately—takes like 5 stone and 5 iron plates, and it chops trees at double speed.
• Build 4-5 burner miners. Place them on a coal patch first. They feed themselves if you belt coal back to them. I wasted my first run wondering why my miners stopped after 30 seconds—they were out of fuel. Feed the coal directly with a short belt loop, or just manually feed until you have 20 coal in each. But the belt loop trick is better.
• Get a stone furnace down. Your first iron plates come from a furnace fed by a miner. Build two furnaces: one for iron, one for copper. Use the iron to make gears, then automate red science. The tutorial kinda marches you there, but here’s the secret: don’t hand-craft red science after the first 10. Make one assembler and feed it iron plates and gears. Then watch it work. It’s slow, but it’s the first step toward freedom.
• Don’t stress about biters yet. They won’t attack you for a good hour unless you run into their nests. Focus on power. Build two boilers and four steam engines to start. One offshore pump feeds 20 boilers and 40 engines, but for now, a tiny setup is fine. Just make sure you have a coal belt feeding those boilers—if you hand-feed, you’ll forget and your factory dies at the worst moment.
• Automate basic belts and inserters. As soon as you have red science running, set up assemblers for yellow belts and burner inserters. You’ll use hundreds. If you hit “craft” on 50 belts manually, you’re wasting 5 minutes you could spend on expansion. Let the machines do it.

One huge thing I wish I knew: hold shift when placing miners on ore patches. It automatically connects them to your belt. You don’t need to line them up manually—just drag a line of miners and shift-click along the edge of the ore patch. Your mind will be blown. I spent three hours placing them one by one like an idiot.

Core Mechanics & Progression

Factorio’s progression is a ladder of tech packs: red, green, gray (military), blue, purple, yellow. Each one unlocks new toys, but the real game mechanic isn’t the tech tree—it’s throughput. How many items move past a point per second. Forget the research screen for a moment; your factory is a series of bottlenecks. Find them, fix them, and you’ll launch a rocket.

Red science is your first step. It’s simple: iron plates and gears. You can get away with one assembler feeding one lab. But the moment you add green science, you need engines and inserters. This is where new players hit a wall. Don’t build a single assembler green science—build six (4 green, 2 green + red mix). Because you’ll need a stack of it, and hand-crafting 100 green science packs is a form of self-punishment.

Here’s the real progression secret: build a main bus. It’s a highway of belts—usually 4 lanes of iron, 4 of copper, 2 of steel, 2 of green circuits, 1 of stone, etc.—running through your base. You pull off whatever you need with splitters. Don’t ask why it’s called a “bus”; just do it. It saves you from spaghetti. I ran my first 10 bases without a bus and I ended up weaving belts around power poles like I was making a scarf. A bus is your sanity.

• Red circuit production is the first real challenge. You need plastic bars from petroleum gas, which means you need to tackle oil processing. That’s the point most people rage-quit. Don’t. Set up a pumpjack on a crude oil patch, pipe it to a refinery with a recipe for basic oil processing. It gives you petroleum gas and some heavy oil. That gas + copper wire + green circuits = red circuits. Just be ready for a clog—heavy oil backs up if you don’t use it. Crack it into light oil with a chemical plant.
• Oil cracking is mandatory. You’ll have gallons of heavy oil and no use for it. Build a chem plant with “heavy oil to light oil” and feed it to plastic. Or just store it in tanks until you need it for lubricant (for blue belts and electric engines). But trust me: crack it.
• Blue science (chemical science) needs engines, red circuits, and sulfur. Sulfur comes from petroleum gas and water. It’s a pain, but once you get that going, you’re halfway to robots.
• Robots change everything. Construction bots and logistics bots are your gods. As soon as you get blue science, rush to build 50 construction bots and a roboport. Then you can copy-paste factory blueprints. Suddenly, expanding your smelting array takes 10 seconds of dragging a blueprint. It’s the moment the game stops being a grind and becomes a strategy game.

Don’t ignore military science. It’s easy to skip because you want to rush bots, but you’ll need piercing rounds and grenades for biter nests. Build a turret wall early—I usually place 4 turrets every 30 tiles, fed by a red ammo belt. Just a single belt loop with inserters. That buys you 3 more hours before you need flamethrower turrets (which are GODLIKE against swarms; use them).

Expert Tips & Tricks

I’ve spent more time in the map editor than I have on some IRL hobbies. Here’s the stuff that separates a chaos player from someone who builds a megabase.

• The 1:1:2 ratio for steam power. One offshore pump feeds 20 boilers, which feed 40 steam engines. When I first started, I placed 2 boilers and 6 engines, thinking “more engines means more power.” Nope. You need exactly 2 steam engines per boiler. Check the fluid window—if your engines are below 100% power, add more boilers. Don’t be that guy who has 100 engines and 10 boilers wondering why the lights flicker.
• Direct insertion is your friend. For green circuits, don’t belt copper wire and iron plates to an assembler. Place two copper cable assemblers directly next to the green circuit assembler, each feeding one side. No belts needed. You just tripled your throughput. This applies to gears feeding red science, and batteries feeding purple science. Belts are for throughput, not for short distances.
• Use the ALT mode. Press ALT once and keep it on forever. It shows you what each assembler is making, what’s in each chest, and which direction belts flow. The cleanest bases I’ve seen look beautiful, but without ALT mode, you’re playing blind. I won’t play a second without it.
• Trains: automate them from day one. Don’t manually drive a train anywhere except the first time. Set up a single-track loop with two signals (rail chain signal at intersection, rail signal at the exit). I lost 3 hours of gameplay because I hand-built an outpost and spent 20 minutes driving a train to bring ore back. Write a blueprint for a two-way train station: 1 locomotive, 4 cargo wagons. It carries 8,000 iron ore. You’ll thank me when your iron patch runs dry and you just send a train to the next patch.
• Defensive walls: use dragons teeth. Those zigzag patterns of walls and fences? They’re not aesthetic. Biters pathfind toward pollution, and if you make them walk through a maze of walls, your turrets get free shots. I put a single wall line backed by 10 turrets, then a second wall line 5 tiles later. Biters try to eat the first wall, then the second, and my flame throwers cook them.
• The F4 key opens debug menus. Check “show-pollution” and “show-enemy-expansion.” You’ll see red clouds spreading across the map. That’s your pollution. If it touches a biter nest, they attack. So you can build radar coverage to see which nests are in the red zone—then destroy them before they attack. Proactive defense is 100x less stressful than plugging holes after a 50-biter swarm shows up.

Common Mistakes to Avoid

• Not using enough power. You think 4 steam engines is enough? It’s not. By the time you’re producing green circuits, you need 20-30 engines. I had a base where I added 10 electric furnaces and suddenly everything went black. Check your power graph (press P). If the yellow line is flatlining, you’re about to lose everything. Add boilers and engines before you add more production.
• Belt spaghetti before robots. I see so many new players weaving belts through the factory to route a single gear to an assembler. Just use a longer belt or run it along the bus. Spaghetti is fun for aesthetics, but it makes debugging impossible. Use a ground-grid approach: one direction is iron, another is copper. Always.
• Ignoring cliff explosives. In late-game, cliffs block your train lines. You can blow them up with cliff explosives (needs military science). But if you don’t have them researched, you either go around or rebuild everything. I spent 5 hours building a rail network around a cliff only to realize I could have just nuked it. Check your map and blow up every cliff near your base before you lay track.
• Hand-feeding labs. You have a belt of science packs and inserters should feed them automatically. I see players with 10 labs and a chest of red science they manually run between them. No. Build a belt loop that passes all labs, or use a “sushi belt” with inserters pulling from one side. Stop being a human inserter.
• Not saving before big experiments. You’re going to try to build a 100-spidertron army or a train that goes in circles. Save the game first. I once rebuilt an entire green circuit setup that required 30 assemblers, only to realize I placed the belts wrong direction. 20 minutes gone. Quick save (F5) is your undo button.
• Fearing nuclear power. It looks overwhelming, but it’s waaaaaay more compact than steam. You need 40 heat exchangers, 70 turbines, and 4 reactors (2x2 layout) to power a megabase. The uranium processing is actually simple: you mine uranium ore, centrifuge it into U-235 and U-238, then craft fuel cells. One centrifuge with 50 ore per minute supplies a 2-reactor setup. Stop being scared—it’s literally more efficient than coal.

FAQ

Q: I keep dying to biters. What am I doing wrong?
A: You’re probably building your base near a biter nest, or your pollution cloud hit them. Build a wall with turrets before you research military upgrades. Place 4 turrets and feed them with red ammo (piercing ammo is much better—use steel). Also, get a car with a machine gun. Drive in circles and shoot nests. Early game, you can clear nests with grenades and 10 turrets. Build forward as you go.

Q: My base keeps running out of iron. How do I fix this?
A: You’re not smelting enough. Double your furnace array. A typical early-game setup is 24 stone furnaces for iron, 24 for copper. That’s 2 blue belts of output. But after green circuits, you need 48+ furnaces. I use a blueprint with 48 stone furnaces in a 2:1 ratio to belts (24 per side). Then upgrade to steel furnaces later for 2x speed.

Q: When should I start using trains?
A: As soon as your first big iron patch runs out—usually around hour 6-8. But I build a central train station where my main bus starts. Then I send trains from outposts to that station. If you don’t use trains, you’ll run out of ore and have to move your entire base. Or you’ll run a belt that goes half a kilometer, which is silly. Trains are easier than belts for long distances.

Q: How do I know if my factory is “good—
A: Look at the production graph (press P). If the consumption line (green) is higher than the production line (blue) for iron or copper, you have a bottleneck. Also, if you have 1,000+ items in a chest that haven’t been used in 10 minutes, you’re overproducing something. Balance it. A “good” factory is one where no machine is idle except the ones you just built.

Q: Should I use mods on my first playthrough?
A: No. Absolutely not. Play vanilla until you launch your first rocket. Mods change recipes, add complexity, and break the learning curve. Long Reach is okay if you hate walking, but don’t touch Bob’s or Angel’s mods until you’ve done a base at least 50 hours in. They’re for masochists like me who enjoy 10-hour oil processing chains.

Q: I’m stuck on oil. I have 20 refineries but no petroleum gas. What gives?
A: Check your refineries are set to advanced oil processing (if you have the tech) or basic oil processing. They output heavy oil and light oil too. If those outputs fill up, the refinery stops producing petroleum. Build a chemical plant with “heavy oil cracking to light oil” and another with “light oil cracking to petroleum.” Feed them from a storage tank. Or just make solid fuel from light oil until you have room. Always crack your excess.

Q: Any tips for a peaceful start?
A: Turn off biters in the world generator settings. Set “enemy base size” to lowest and “starting area” to 600%. That gives you a ton of time. But honestly, the game is designed to have pressure. I’d keep them on but set them to “small” and “low frequency.” You’ll learn more through failure.

Q: How do I even launch a rocket?
A: You need to build a silo (costs 10 engines, 1000 concrete, 200 blue circuits). Then you feed it rocket control units (blue circuits + processing units + steel), then rocket fuel (solid fuel + liquid fuel), then low-density structures (copper + plastic + steel). That’s the endgame. It needs 100 of each part. Build a dedicated production line. After the first one, you can launch satellites for infinite research. But honestly, that first launch is the dopamine hit. Don’t rush it—just enjoy the spaghetti until then.

Alright, go fire up the game. Build a main bus, crack your oil, and stop punching trees by hand. You’ve got a planet to conquer. If you hit a wall, come find me on the forums or in a Discord—there’s always someone who’s been through the same bottleneck. Good luck, engineer.