You need a Java 2 (J2SE) compatible machine with at least:
By profiling the secunda application program I was able to reduce the processing power
used by the game significantly
from about 70% CPU load to about 25% CPU load as shown
in the following graph:

This will reduce the hardware requirements for the next release accordingly.
A current JRE version 1.3.1 or 1.4.0 is necessary.
After downloading the JRE installer, execute the installer to make your system into a J2SE platform.
Save this "secunda.jar" file to your hard drive (use the context menu command "Save link as..." or similar).
Save into an appropriate install directory (Unix users: you can use your home directory - Windows users: you can use the "Program Files" directory).
This file (v.0.700) has to be exactly 26.148.041 bytes long after a successful download, about 25 MB.
Depending on your system, you can simply double-click that file in order to start secunda,
or you need to open a command shell and change directory (cd) to the install directory and type at the shell prompt:
> java -jar secunda.jar
or you need to include the installation path to your JRE like in this example:
> /usr/lib/j2re1.4.0/bin/java -jar secunda.jar where /usr/lib is your JRE installation directory.
For feedback, questions and support write to arTm & friends.
For open source license, warranty disclaimer, and source code see the secunda license terms and conditions.
For known problems, caveats and last-minute-info see the file readme-1st.txt.