The Horizen Faucet at https://getzen.cash is a fun way to learn about the Horizen eco-system.
You get small amounts of ZEN when you perform certain tasks, such as:
downloading a wallet application
make transfers with the wallet
learning how to verify an address and prove that it belongs to you
We intend to continue to add features to the Faucet to further our goal of educating people about crypto-currency in general and Horizen in particular. This is a game that you can play for the enjoyment and the education.