In the game, the player must clear the screen before it overflows by creating words from assorted letter tiles.

The impetus for the game—the concept of combining elements from Tetris and Boggle in what was a prototype of the puzzle video game Puzzlejuice—inspired Gage to create SpellTower.

This browser-based Flash game created special "blitz" like modes not found in the mobile releases.

In the iPad puzzle video game SpellTower, the player attempts to clear the screen of jumbled, lettered tiles by using them to create words.

[2] A later update added a multiplayer battle mode, where players can face each other across local Bluetooth connections.

[9] A month later, Gage added support for iPhone and iPod Touch, and Game Center achievements.

[12] Gage and developer Jack Schlesinger rebuilt SpellTower from scratch to better accommodate changes made since its original release.

[13] In 2023, SpellTower was integrated into Polygon's games portal Puzzmo, developed by Gage and Orta Therox, as a daily puzzle.