Sir Loin is a simple graphic adventure with a series of basic quests played against the clock. The player has to find different servants and swap specific items between them. The ultimate goal is to get the correct servant with the correct item into the King’s Throne Room at a specific time.
Apart from wandering around the castle and searching for servants, Sir Loin also has to stab various opponents (including ghosts) with his sword, otherwise they reduce the amount of time he has left to achieve the tasks.
The look and feel of the castle (along with the control system employed), is very similar to Firebird's own arcade adventure, Black Lamp