Niecza is an implementation of Perl 6, generating code to run on the Common Language Runtime (Mono/.Net).
Its stated initial description and mission may be found in its [https://github.com/sorear/niecza/blob/master/docs/announce.initial initial announcement]. It is currently no longer maintained.
Home page: [https://github.com/sorear/niecza sorear/niecza] on Github.