renpy/doc/tutorials/Ren'Py Web Tutorial
From Ren'Py Visual Novel Engine
Ren'Py Web Tutorial
This tutorial is aimed at taking you from knowing nothing about Ren'Py to releasing a complete visual novel. A visual novel lacking frills and fancy visual effects, certainly, but a complete visual novel. And if you really want the frills, you can always supplement this tutorial with the Cookbook, the Reference Manual, and asking on the Ren'Py Forum for your first game.