Cipher.
Crack the substitution cipher. Every letter has been swapped — figure out the mapping. Fastest solve wins.
Cipher is a word game built for the short window between meetings. A round usually takes 3 min, with 1 attempt before the score locks. Letters, language, the occasional pangram. The team-wide leaderboard rebuilds itself daily, so the only thing carrying from yesterday is bragging rights.
- 01GoalDecode the encrypted message by figuring out the letter substitution mapping. Every letter has been swapped with a different letter.
- 02How it worksClick on any encrypted letter, then type the letter you think it represents. All instances of that letter update at once.
- 03HintsIn English, E, T, A, O, I, N are the most common letters. Short words like "THE", "AND", "IS" can help you get started. Look for patterns in word shapes.
- 04SolvingWhen all letters are correctly mapped, you win automatically. The puzzle turns green when solved.
Common Thread
16 words, 4 hidden groups. Sounds easy until you realise "bass" could go in three of them.
Read about it →Letter Hunch
Guess the phrase with as few letters as possible. 3 puzzles — fewer guesses = more points!
Read about it →Five Letters
Guess the 5-letter word in 6 tries. You already know how this works. You're addicted.
Read about it →Common questions
Is Cipher free to play?+
Cipher is part of Halftime's paid game library. Halftime is free for up to six players, and the full game library unlocks on paid plans starting with Starter.
Do I need to download anything to play Cipher?+
No. Cipher runs in any modern browser on desktop or mobile. The version on Halftime is the full game, with no app to install.
Can my whole team play together?+
Yes. Halftime gives every teammate the same daily game and lines up their scores on a shared leaderboard. Connect Halftime to Slack or Microsoft Teams to drop scores into your channel as they come in.
There are plenty more waiting.
Set up your team in under a minute. One daily slot, all six categories, your record book starts the second you arrive.