Godot is a free, open-source game engine for making 2D and 3D games. It uses a node-based scene system and supports scripting with GDScript (and optionally C#), which makes it a strong fit for secondary classrooms that want a full-featured engine without licensing costs.

Link to Tool

• Official site: https://godotengine.org/
• Download: https://godotengine.org/download
• Documentation: https://docs.godotengine.org/

Tutorials and Lessons

• Getting started (official): https://docs.godotengine.org/en/stable/getting_started/first_2d_game/index.html
• Learn GDScript (official): https://docs.godotengine.org/en/stable/tutorials/scripting/gdscript/index.html
• GDQuest (high-quality Godot tutorials): https://www.gdquest.com/