Eye of Argonia
The Elder Scrolls Adventures: Eye of Argonia was a planned sequel to Redguard. Like its predecessor, it was an action-adventure game with few of the role-playing elements of other Elder Scrolls titles. In response to Redguard's poor sales, it was planned to be released on the PlayStation 2 and other consoles, rather than PC. The game seemingly never made it past conception, with work resuming on The Elder Scrolls III: Morrowind instead. The name would imply that the game would have taken place in Black Marsh (a.k.a. Argonia).
In Redguard, Cyrus discusses the Eye of Argonia briefly with Tobias and Dreekius. Described by Dreekius as the "priceless king's jewel of ancient Black Marsh", it is a treasure sought by both Tobias and Cyrus. It was mentioned in the mock Q&A for The Origin of Cyrus! as "a priceless gem that also serves as a key to the Lost City of Black Marsh". Since the game's cancellation, it has appeared briefly as an Easter egg in subsequent games. The book Ruins of Kemel-Ze, found in most games since Morrowind, mentions the Eye, where the author, archaeologist Rolard Nordssen, dreams of recovering it. In Tribunal, one of Morrowind's two expansions, the Eye is mentioned in dialogue with Trels Varis upon entering his secret office.
The logo seen above was first included in the Daedric font packaged with the Morrowind CD. It is titled simply Argonia, rather than "Eye of Argonia", and the subtitle reads "AND A HERO FROM HAEROT WILL SAVE THEM". While it was included in an official release, neither Michael Kirkbride nor Pete Hines were aware of its existence, and the creation of the font that the image was included in came long after the game's cancellation. Thus, whether or not it really is the logo for Eye of Argonia remains uncertain.