RPN Engineering Calculator
This RPN calculator offers 250 solutions with six unique keypads. It has a complete help system with individual tips for all but the most ordinary functions and a Tip of the Day feature for new users. You can select fixed, scientific or engineering notation and degrees, radians, or grads as... The functions available using any keypad are: STO, save up to 4 numbers into memory, 2 of these storage registers can be used for register arithmetic; Lastx, retrieves the last number that was used; Drop, deletes the number in x-reg and Drops the number in y-reg into x-reg; x y, exchanges the values...
http://www.j-a-associates.com/DnLoads/rpn.zip - 1Mb - Download - Screenshot

Starscape
Moonpod? s Starscape mixes old school arcade game play values with characterisation and involving plot to deepen the whole experience. With most of its crew missing and its weapons systems ruined the space research station Aegis is all but lost. As the last remaining pilot you must help rebuild... Within the nodes of the grid you will encounter allies to aid in the struggle to escape, uncover the terrible purpose of the evil Archnid race and learn why you and the rest of the crew were brought here.
http://www.moonpod.com/externaldownloads.php?f=InstallStarscape.exe - 14Mb - Download - Screenshot