Paradox regularly releases patches to their games long after a game's initial release. Paradox Interactive games are also characteristically complex, with highly detailed gameplay models and consequently steep learning curves. The focus of each game is different, but generally a player must manage the economy, commerce, internal politics, diplomacy, technological development, and military forces of a nation. Almost all Paradox games have historical settings and demonstrate a reasonable commitment to historical accuracy. The studio produces what it terms 'Grand Strategy games', meaning ones played on a real-world map, marked by the use of standard real-time elements but with an ability to make any and all changes while paused (and while unpaused).