About Letter Keep
Letter Keep is a daily word game where every word you find builds a castle, and every night a horde tests it.
It is made by an independent developer who loves word puzzles and old pixel-art strategy games, and wanted a daily game where the result is something you can see grow: you find words in the morning, the castle rises during the day, and the next day you watch the battle.
How the puzzles are made
Each puzzle is seven letters chosen so that the day has between about 100 and 200 valid words and at least one royal word that uses all seven. The English word list is built from SCOWL (Spell Checker Oriented Word Lists), keeping common words, and word frequencies from the wordfreq project help decide which words are everyday words. Offensive words are filtered out. The castle, the landscape and the enemy faction are generated from the date, so everyone sees the same castle on the same day.
Languages
Letter Keep is played in English and Spanish. Each language has its own letters and word list every day.
Credits
- English word list: SCOWL by Kevin Atkinson and contributors.
- Word frequencies: wordfreq by Robyn Speer (data under CC BY-SA 4.0).
- Spanish word list: an-array-of-spanish-words (MIT license).
- Fonts: Zilla Slab and Chivo, from Google Fonts (SIL Open Font License).