Categories and custom AI word lists in Imposterium
The category is where every round of Imposterium begins. It sets the pool the secret word is drawn from, so the right theme can make this undercover word game easier, harder or just funnier. Pick a built-in category for instant play or invent your own with AI in any of 10 languages. Switching themes between rounds is the simplest way to keep a long game night feeling fresh, because a new category means a whole new set of words to bluff your way through.
Built-in categories for instant play
Imposterium ships with a range of everyday themes so you can start straight away, including a Religion and Belief category. Each one is curated to give the crew clear words and the impostor a real challenge, so there's always something ready the moment you open the game.
Custom AI categories for any topic
Type any theme you can think of, from your favorite show to your hometown, and the server-side AI writes a fresh word list for it. It's the fastest way to tailor the game to your exact group, and great for inside jokes that only your friends would recognize.
Words in 10 languages
Both built-in and AI categories generate words in German, English, French, Albanian, Turkish, Spanish, Italian, Portuguese, Dutch and Serbian, so you can play in whatever language fits the room.
Match difficulty to your group
Pair a category with easy, normal or hard difficulty to fine-tune how tricky the words are. Niche topics and harder settings reward groups who know each other well, while easy themes keep things welcoming for kids and newcomers.