Your First Factory — A Complete Beginner Walkthrough

Step-by-step guide to building your first working factory in Factorio, from the first punch to automated red and green science.

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Goal: By the end of this guide, you will have a working factory producing the first 4 science packs (red, green, blue, gray) automatically.

Step 1: The First 10 Minutes

Punch iron ore and copper ore by hand. Craft your first iron plate and copper plate manually.

Priority: Get 1 burner mining drill on iron ore ASAP
Next: 1 stone furnace smelting iron plates
Then: Craft a burner inserter to automate feeding the furnace

Step 2: Power and Automation

Place boilers and steam engines to generate electricity. You need power before you can use electric mining drills and assemblers.

Power formula: 1 boiler + 1 steam engine = 900 kW. A small factory needs 2-3 steam engines early on.

Step 3: Your First Science Packs

Research automation first. Then build an assembler making electronic circuit (green circuits).

Science PackKey Ingredients
Red (Automation)Iron gear + Iron plate
Green (Logistic)Electronic circuit + Iron gear
Blue (Chemical)Engine unit + Electronic circuit + Plastic bar
Gray (Military)Piercing rounds magazine + Defender capsule

Step 4: Scaling Up

Once red and green science are automated:

  1. Build a main bus — long belts carrying iron/copper plates through your base
  2. Add steel furnaces or electric furnaces
  3. Automate inserters and transport belts production
  4. Expand mining outposts as ore patches deplete

Mistake to avoid: Don't try to build everything in one tight area. Leave space for expansion from the beginning.

Checklist Before Launch

  • [ ] Red + Green science fully automated
  • [ ] Blue science production started (requires oil)
  • [ ] Steel production running
  • [ ] A few gun turrets with ammo near your base
  • [ ] Radar placed (reveals map around your base)
  • [ ] Started planning your rocket silo location

Next up: Read the Production Ratios guide to optimize your assembler counts.

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