# Tutorials for the Cosmos SDK
This is the quick and simple "Hello World" introduction to building with the Cosmos SDK. You will build a fully-funcitonal blockchain with payment functionality and a custom "greeter" module. This tutorial makes use of the
utils/starter package to reduce boilerplate and allow you to focus on the core concepts. Start here if you are evaluating Cosmos as your possible platform of choice.
The real deal, full-length tutorial in which you will build a fully functional naming service on a blockchain. This tutorial does not use the
starter package, rather you will be configuring and composing a full application yourself.
The nameservice tutorial also has translations and a slide deck.
A scavenger hunt of sorts! Users post questions with hashed answers and bounties for whoever can solve them using a commit-reveal scheme that prevents front-running.