| wall | The 64 cells, A1 to H8, on the plaza of the city. |
| cell | One of the 64 places on the wall, named by its address. |
| address | A cell's name: a column letter and a row number, such as D4. |
| claim | Buying a free cell, at step 1, for $30. |
| buy out | Buying a taken cell at its next step; the owner cannot refuse. |
| step | The number of the purchase a cell is at; the price of step n is $30 × 1.65^(n−1). |
| owner | Whoever bought a cell last. |
| earlier owner | Anyone who owned a cell before its current owner. |
| royalty | An earlier owner's share of every later sale of a cell, forever. |
| fee | The platform's 2% of each buyout. |
| profile | Your nickname, avatar or photo and links, shown on every cell you own. |
| boards | The three screens that show the three priciest cells, No. 1 to No. 3. |
| wallet | Your account: it pays, it owns, it is paid. |