Eric the Unready chronicles the adventures of a fumbling knight, a laughing stock of his peers, who accidentally gets assigned the task of saving the princess. Eric is not a very imaginative choice for the protagonist but the game fortunately manages to keep him in the "lovable loser" category as opposed to the "annoying twit" category that are very very close to each other.
The interface has several windows that are, among others, a compass rose, a picture of the location, an automap, a list of available commands and a list of objects in the location. The lists are not of much use to experienced players and can at times even be considered minor spoilers but they can be hidden from the view giving the text area more room.
The jokes vary between hit and miss, fortunately there are more hits than misses. References to popular culture and other games of the era abound. The humor and the game's world in its absurdness resembles Monty Python very much; influence from The Holy Grail is obvious.
Resemblance to Monty Python doesn't end with the humor. The gameplay is very episodic and after the player has finished with one set of puzzles in one location, he is transported into new location with a new set of puzzles. There's not much to tie the scenes together. While this is usually not considered the best design choice, it works here for the same reason it works for TV's sketch shows: the jokes don't have a chance to get old.
As the game was published in 1993 and has been out of print for many years now it might be hard to get your hands on it, but if you can find a copy it's definitely worth playing.