Pirate Chain is a privacy focused cryptocurrency that is based on Komodo's dPoW consensus mechanism. Pirate Chain uses ZK-Snark cryptography to secure transactions that are sent on their anonymous, decentralized network.

Hush is a cryptocurrency and messaging protocol that is focused on privacy. It uses a the equihash mining algorithm, which is a Proof-of-Work (PoW) consensus mechanism. It offers a high degree of privacy, and allows users to transact and send messages anonymously.
Hush is a fork of Zcash, and uses zk-SNARKS for zero-knowledge cryptography. Hush will allow developers to deploy Ethereum smart contracts on the Hush network.
The founders of Hush are closely associated with Komodo.

TurtleCoin is a privacy-focused coin with a short block time. It was created by two developers that call themselves Bebop and Rocksteady. Their goal was to create a cryptocurrency that was focused on community development and did not require a large ICO. Turtlecoin has a short block time of only 30 seconds, and has many of the same privacy features as Monero (XMR). TurtleCoin has a Proof-of-Work (PoW) consensus mechanism.