1010! Klooni - 1010! Klooni is the FLOSS version of the original minimalistic puzzle game by Gram Games.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Quadrapassel - In Quadrapassel, the GNOME version of Tetris, your goal is to create as many complete horizontal...
DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
Blockinger - An open source Tetris clone for Android.
PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.