lifeh2o

I want to add a concept/tag for the bridge building games. There are many games made specifically on this concept. How do I add it to all such games? They are hard to find here currently.

http://www.giantbomb.com/poly-bridge/3030-50031/

http://www.giantbomb.com/bridge-builder/3030-846/

http://www.giantbomb.com/bridge-constructor/3030-43292/

http://www.giantbomb.com/bridge-builder/3030-41601/

http://www.giantbomb.com/videos/quick-look-bridge-constructor-medieval/2300-9528/

http://www.giantbomb.com/videos/quick-look-bridge-constructor/2300-8112/

http://www.giantbomb.com/bridge-it/3030-31230/