OPUS – One Page Universal System April 15, 2018 by The Miniature Wargaming Editor OPUS is a one page, universal role playing system. Share this:Click to email a link to a friend (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Reddit (Opens in new window)Click to print (Opens in new window) Related
