Osmo Lettertopia uses the Words tiles, and Osmo Math Buzz uses the Numbers tiles.
These game pieces can be purchased in the following ways:
- As standalone sets of game pieces: Words and Numbers
- As part of the Genius Starter Kit (which does NOT include Lettertopia and Math Buzz)
- As part of the Genius Starter Kit + Family Game Night (which includes Lettertopia and Math Buzz).