The room of requirement

2.  A game of Knock Out Whist from David Holdsworth.

All you need to do is …

Download the game

Just extract the zip file somewhere convenient, and it creates a subdirectory.
 
This is easily down by ‘double clicking’ on the zip file you have just downloaded. 
 
Then double click on the readme.html file to get a full set of instructions.
 
Have fun! David.