MWC (MimbleWimbleCoin) was created in February 2019 and launched in November 2019 as a fork of Grin, creating a more investment-worthy MimbleWimble token by increasing the supply cap. Additionally, a "HODL program" was created to reward holders for not moving their coins for a designated period, paying out additional tokens. The development team is also working to integrate the latest features into the wallet, including multi-signature and atomic swaps. Of the 20 million MWC that will exist, 6 million (30%) were airdropped to BTC holders - over 1 million (10%) have been used for the MWC HODL program.