In this fantasy adventure you must recover the eponymous sword which will save the world from oppression. The intro story is overly long for such a typical plot, but does set the scene for an atmospheric opening in which you are dropped off atop a cathedral by sky ship.
Unfortunately, the initial thrill of going on something like a thieving spy mission in enemy territory quickly gives way to some pretty aggravating puzzles. The precautions you must use to spirit the sword to safety without being detected are not unsophisticated in design or programming (you would hope not from a 2003 Eamon, as this is very much post-heyday) but they are well irritating, because you can wreck your game if you don't do the right things in the first few rooms, but you won't be told about your mistakes until you make it all the way to the end, at which point the game really rubs it in.
Other problems in this adventure are the stacked nature of some locations (in a handful of rooms, you need to examine almost every noun mentioned in the description to unveil a heap of embedded items - most other rooms contain nothing) and the vagueness of what you're trying to do once you get out of the cathedral. Some side puzzles have a lot of programming devoted to them but deliver unimportant payoffs which don't help you to complete the game. I spent ages trying to string together the right series of commands to achieve something in the blacksmith's shop.
In spite of its moments of undoubted sophistication, I found Sword Of Inari to be pretty hard going, even with its relatively small map - because of how easy it is to wreck your game without knowing about it, and how spread out and unpickable the most important puzzles are, and how hard it can be to dredge up the right command to interact with those puzzles.