If you are adding tags to any page can you use an underscore to connect tags that have more than two words, e.g. to tag the term game mechanics put game_mechanics into the tag box. You add tags by clicking on the Tags button at the bottom of the page. It is next to the Edit button.
In a way, this Wiki tries to operate a bit like a map or anchor for the wanderings you will likely do as you explore bit space and build your own maps and understandings.
To see what the latest changes that have been made to the Wiki are, click on Recent Changes in the side menu.