This is a remake of the famous MS-DOS Tunneler game originally written in Pascal language. ​https://tunneler.org/
Now it has been written from scratch in Lazarus/FPC to run natively on both Linux and Windows.

<ul><li>Up to 8 players</li><li>Configurable player keys</li><li>Many sample maps included</li><li>Multi-language support (English, Czech)</li><li>High DPI support</li></ul>