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• Your goal is to find and clear words by selecting tiles in the grid.

• Words must be made up of contiguous tiles. You can use diagonals and cross your own path.

• Select words by dragging on the grid, tapping each letter individually, or typing on the keyboard.

• Submit a word by tapping the last letter again or by hitting return on the keyboard.

• When you've made all the words you can, select I'm done to complete the game.

Keyboard controls

• Type any word to select it on the grid.

• Tab — toggle the selected word.

• Return — submit the selected word.

• Delete — Deselect the last selected cell.

• Esc — Deselect the entire word.

Blank tiles

• Blanks are cleared by making any word next to them.

Bonus clears

• If you make a 5+ letter word, all adjacent tiles will also be cleared.

• Rare tiles: J, Q, X, and Z tiles are colored. Using any of these tiles in a word will also clear the entire row.

Full clear

• If you manage to clear the entire tower, the game will end immediately and you'll get a 1,000 point bonus!

Word scoring

• Word score formula : sum of word tile values + sum of bonus tile values) x word length x (1+# star tiles).

• Sum of word tile values: each tile in SpellTower is worth points based on how uncommon it is.

• Sum of bonus tile values: these are the values of any tiles cleared in addition to the word itself — tiles cleared by a row clear, or tiles cleared by the 5+ length word bonus.

Star tile bonus

• Using one star tile in your word with multiply the value by x2, two will give you x3 and three will give you x4.