Pierics: a five-letter word game that teaches IELTS vocabulary

Pierics is a word game in the spirit of Wordle. There is a hidden five-letter word and you have six tries to find it. After each guess the tiles tell you how close you are: green for the right letter in the right place, amber for a letter that is in the word but somewhere else, grey for a letter that is not there at all.

The IELTS part comes after you solve it. Every answer shows the word's definition and an example sentence, so each round ends with one more word you can actually use in an essay. No account, no sign-up. It sits on its own domain, pierics.com, and runs entirely in the browser.

Small game, real details

It shipped on 20 June 2026, and I spent a session on it before that. That session is what made it feel right.

• It was renamed from its working name to Pierics and moved to its own domain.
• The keyboard keys got much bigger, because most people play on a phone with a thumb.
• The word list got real attention. Every word that was not exactly five letters went. About 80 common five-letter words, plurals and verbs, were added to the allowed guesses so that sensible guesses are not rejected. The answers are a clean set of 128 words.

Why a game

Small, self-contained games with tight rules and instant feedback are the kind of build I enjoy most. They are also honest about what they are: you open it, you play one round, you learn one word, you close it. That is a good fit for vocabulary, which is mostly about seeing a word again and again in a way you remember.

If you are studying for IELTS, it pairs well with the tests on FlareStamina. Play at pierics.com.