Castle Explorer is one of several edutainment games from the 90s I have great fondness for. You got to learn loads about life in a medieval castle and at the same time, explore some 3D-rendered rooms and chat to characters while looking for pieces of the map. You got thrown in the dungeon if you got caught. I remember they stripped down the exploration angle for the "sequel" to this game, Stowaway!
Anyone else remember this game?