There are three landlords for whom you can accept missions. A huge difference in comparison to Tenchu is, that the game is widely non-linear, which means that you can choose the missions you want to participate in at almost any given time. Carefully approaching of your enemies from behind is crucial, because your character isn't very capable in direct combat.
The gameplay's main idea is to complete your missions without being noticed by guards, watchdogs or even harmless townsmen. Shinobido - Way of the Ninja is stealth-action game, that is comparable to the well known Tenchu series.