Vavoom is a DOOM source port incorporating Doom, Heretic, Hexen, and a little bit of Quake. It runs on DOS, Windows, and Linux and includes many advanced features like OpenGL and Direct3D support, translucency, freelook, jumping, a client/server architecture with in-game joining, a Quake-style console, a powerful language to describe game logic (Vavoom C), and much more.
Survex is a software suite for processing, viewing, and printing cave survey data. It is multi-platform and multi-lingual, can deal with extremely large and complex datasets, and can read survey data from many sources. A sophisticated GUI visualization tool (Aven) is included as well as the data processing tool (Cavern) and a data entry tool (Survex-edit). There are also printing and data conversion tools. Printing for HPGL, Postscript, PCL (Laser/inkjet), and Dot-matrix printers is supported. Output converters to DXF and extended elevation form are included. Survey data can be read in native Survex form, or Compass or CMAP files. Conversion from other formats such as SMAPS is easily accommodated.
WIPORT is a layer over the grx graphics library which provides a simple GUI API with memorization of the objects displayed in the various windows. This makes redrawing and printing to a scalable PostScript representation easy to do. Thanks to the grx library programs, using WIPORT works identically on the DOS graphical console, Linux+svgalib, and Linux+X11. WIPORT is written in C and comes with an Ada-95 binding.
MailListStat is a tool that generates useful statistics for email archives stored in the mbox format. It will show the top 10 authors, most successful subjects, and more. It also prints graphs showing the number of messages written during different hours of the day, days of the month, and days of the week. The output is in text format suitable for mailing. It also produces output in plain text or HTML format, includes a PHP wrapper, and supports cache files. It is mainly useful for mailing list archives, producing tables and graphs, and supporting different output languages.
Tanky is a tank shooting game with old-school graphics (lines and flying pixels in 16 colors). It can be played by 2-3 players on one keyboard. The main goal is to shoot your opponents down. You have one tank, five shots, and a shield which can take five points of damage. Every time, there are different bonuses flashing around. Collect them and gain faster weapons, more shots, recharge your shield, etc. The best-scored player wins.
cz2cz tools is software for converting texts between various charset encodings that are used in the Czech language. The most important feature is autodetection of the most-used encodings (UTF-8, ISO-8859-2, Win-1250, cp850, and Kamenickych). There are both console non-interactive (text-based) and interactive (curses) applications. cz2cz also allows you to convert characters with diacritics to TeX (LaTeX) conventions. The interactive part of cz2cz tools can be used for quick manual complementing of diacritics to texts.