This package contains everything you need to launch Solarus quests. If you only want to play games, this is the right package for you.
Just download the quests you want and open them in Solarus Launcher.
This is the package for people who want to create Solarus quests. It expands the player's package with game-making tools.
Tutorials and docs will guide you to make your own Solarus quest.
If you are looking for something else: