This game was released as free software in 2003 via the Internet under that title, and gained much popularity.

TransGaming decided to release their software as proprietary software.

Inferno 4th edition was released in early 2005 as free software.

In March 1 of 2013, it was released stable version as free software for non-profit personal use.

Since 2009 the application has been released as free software.

The game was released as free software.

It was released as free software under the GPL in 2005.

In addition, BO2k was released as free software, which allows one to port it to other operating systems.

It was first released on 26 October 2007 as Windows-only software.

Icecast is a streaming media project released as free software maintained by the Xiph.org Foundation.