Tutorials

How hard can it be?

This article is a list of tutorials that will guide you through the finer points of the Kerbal Space Program.

Please note that these articles are user-created, and each user is responsible for their tutorial.

For a high-level overview of the game mechanics, you can read this Game Manual by SGCam.
For first-time players, try Tutorial: Walkthrough for Ye Compleat Beginner.
A less detailed "cheat sheet" type reference is available as Basic Maneuvers.
For a logical series of missions that build up your knowledge, check out Campaigns.
A list of the game's default key bindings is also available.

Rocket and Probe Design

Cheat Sheet A KSP Rocket Scientist's Cheat Sheet
Basic Rocket Design by Senshi
Basic Probe And Satellite Building By Nova Storm
Exploring The System a comprehensive mission and vehicle design campaign by Pecan
Intermediate Rocket Design
Advanced Rocket Design by Vincent McConnell and Kosmo-not
Asparagus Staging a method to design very fuel-efficient rockets
Rocket Assembly Making the most of sub-assemblies, by shadowraven
What's with all the math? A non-rigorous explanation of the math in KSP
Recovering Rocket Stages Recovering those usually-expended stages for more funds!

Orbiting and Docking

Orbiting Fundamentals

How to Get into Orbit a primer on how to get into your first orbit
Basic Orbiting (Math) by Entroper
Walkthrough for Ye Compleat Beginner
Advanced Orbiting by Entroper
Land at the Space Center by an anonymous person from Albany, New York
Performing a gravity assist
Camera view How to see yourself in space
Geosynchronous Orbit (Math)
How do I Rocket: Beginners Orbiting Cheat Sheet By JoerT

Orbital Rendezvous

Tutorial: The Berry Maneuver Simple instructions on how to get to another planet or moon without all the waiting (it is not necessary to wait for your target planet to reach you) by Gregory Berry
Tutorial 1 and tutorial 2 (should be merged)
A detailed discussion on how to meet objects in orbit, including how to synchronize orbits/phases

Docking

Tutorial: Docking Is Easy (if you follow this tutorial) Docking is easy if you understand the navball. Waiting for a close intersection is not necessary. This tutorial is simple and detailed instructions to dock without frustration. By Gregory Berry
Basic Docking by PD
Orbital Docking with the Kergena Target Vehicle

Plane and Spaceplane Design

Basic Plane Design by StelarCF
Fighter Plane Design by ZXZX10000 & StelarCF
Spaceplane basics by Heatseeker
Basic Aircraft Design - Explained Simply, With Pictures by keptin (partially obsolete as of 1.0; ignore comments about drag)

Real life missions

The high level of realism in Kerbal Space Program allows to recreate historical, current and future missions of human spaceflight. These missions start simple and become gradually more complex, so they are a great way to learn KSP. For a logical and progressive list of missions, goals, and milestones that may or may not have tutorials linked, check out the Campaigns article to get ideas in planning your own space program.

Sputnik 1 - first satellite in orbit
Vostok 1 - first human spaceflight
Gemini 6A & 7 First orbital docking
Luna 9 - First soft landing of a probe on the moon
Apollo 11 - First human moon landing
Apollo 15 - First moon buggy.
Salyut programme - First space stations of any kind
Deep Impact - first look into a Comet.
International Space Station - Series of missions for the current space station.
Mars One - first colony on Mars consisting of four people at first by 2023.

User-Created Challenges

Speedy Moon Landing by KspGuy415

Career mode

Science mode

Planets and Moons

Eve

Duna

Traveling to Duna and Back by craigmt1

Jool

Tutorial:How to get to Jool

Laythe

Eeloo

How to get to Eeloo by StanzInc

General Information

Customization

Add-on Development

Making an asset from start to finish - Darrknox & Killerhurtz
Plugins (using and creating) - N3X15
Adding Airlocks and Ladders to Parts
Editing MBM Textures
Kerbal to Pro: Modelling in 3ds Max - Bilsta1000 covers modelling, texturing, basic animation and importing to KSP
Configuration File Definitions - Joshuadery covers what each of those marks means, from modules to resources and everything in between
Community API Documentation

Stubs

These tutorials aren't completely finished yet. You can help to complete them.

Rureglathon's Narrated Video Tutorials

For more tutorials and other videos, my YouTube channel is here.

Video tutorials

Feel free to check out the Kerbal Space Program Media Page for tutorials, channels, and other videos exploring what you can do in KSP.

Creating New Tutorials

To create your own tutorial, start with Tutorial:Template. When adding to the Category:Tutorials add the name of the tutorial (like in the template) to sort the pages without the prefix Tutorial:.

Note to tutorial writers: These are supposed to be tutorials. Think "Orbits for Dummies." If you're going to explain intricate details (including math!), consider marking your tutorial "Advanced".