Godot Stairs, an experimental implementation of stair stepping(source in comments)

Introducing the Godot 2D Platformer Starter Kit & Tutorial

Create a Hyper-Casual Platformer Game On Godot 4.0!

Game Programming: Game Engines | Godot Basics Tutorial | Ep 02 | Godot Tutorials

Godot API Basics | Godot Basics Tutorial | Ep 04 | Godot Tutorials

Complete Godot Beginner Course