The Mario's Early Years! series is a trilogy of point-and-click educational games released on MS-DOS and Super Nintendo Entertainment System by Software Toolworks. The three games consist of Fun with Letters, Fun with Numbers and Preschool Fun.

In each product, the player has a number of islands to choose from. Each island contains a different activity. The game highlights any items or characters which are clickable. Throughout the activities the player is prompted by voiced instructions and every word, letter or number is read out. The SNES versions of the products contain less activities than the original DOS ones. The Super Nintendo versions support the SNES Mouse peripheral.