Letters is a clicker game built around a simple exchange: click a letter and receive more letters. Rather than framing that loop within an adventure or narrative, it keeps attention on collecting and on the letters themselves. Its deliberately narrow premise gives the game a compact, focused identity.
The collection also follows timed reward intervals. Every three hours, players can get four common letters; every five hours, two uncommon letters become available, and a rare letter arrives on a 24-hour interval. These scheduled drops add a waiting rhythm to the direct clicking, while the different rarity categories distinguish what can be collected.
Alongside earning letters, the game includes changing a letter and clicking for more random letters. The design therefore combines direct interaction with randomized additions and time-based rewards, all centered on one collectible theme. Letters does not present a sprawling set of systems in its stated feature list; its appeal lies in the clear, repeated cycle of clicking, earning and changing letters. The result is a small-scale clicker concept organized around accumulation rather than a more elaborate progression structure.