Slimenia is the home of the Slimes and other monsters. The capital city, Boingburg, was once attacked by the Plob.
Slimenia appears as a playable board in Fortune Street. In Easy Mode, the board makes an outline of a Slime with 2 circles of 4 shops to make eyes. In Standard Mode, the board also makes the outline of a Slime but it has a line of shops stretching across the middle to make a mouth. There is a sideways figure 8 in above the mouth part to make eyes. In Tour Mode, the player has to get at least 2nd against Slime, Stella and Carver to beat the board.