Each round in GRBLD, players draft letter cards to build words in a given category. Players draft only consonants, with vowels being free! Once the words have been built, players drop the words on their sheet. The first word will still make sense, but then things get GRBLD!
Players score by filling rows, marking off the alphabet, filling a "combo bar" by placing vowels in the correct spaces, and stacking the same consonants on each other. Via the combo bar, players unlock great powers to use, such as the "letterbomb" and the ability to use both letters on a card or even to make two words in a round.
By using various powers, players get to experience satisfying explosive turns in which they rack up both words and points. However, peak too early and risk running out of space for your words; peak too late, and risk not being able to make optimal use of your powers.
—description from the publisher