Loading Cifras…
Read the prompts, pick up the controls as you go and see how far one run of this browser game takes you.
Originally by zhg7 · GPL-3.0 licence · source
Yes. Cifras is free to play in your browser, with no account, no download and no payment.
Yes. It runs in a phone browser, and the on-screen pad and swipe controls send the same keys as a keyboard.