Stacktags – the most competitive learning platform on the internet

Learn from thousands of lectures and folders and prove your knowledge and skills in exciting quizzes and competitions. Stacktags combines effective learning with competitive play — alone, against friends, or against players from around the world.

What is Stacktags?

Stacktags is a modern learning platform that combines classic vocabulary and knowledge tasks with multiplayer competitions, map-conquest modes, and live quizzes. Instead of clicking through flashcards alone, you compete against others: whoever answers faster and more accurately wins territories, points, or rounds. Learning stays focused, motivating, and social.

How the game works

Stacktags offers several game modes for different learning styles:

Fast Quiz – quick rounds with general knowledge or your own study material.
Bombatags – the namesake game: hot potato with knowledge questions.
Block Hill – a territory-grab mode where correct answers secure tiles for you.
Map Conquest – Risk-style battles on maps of Europe, Africa, the Roman Empire, or Japan.

You can play privately with friends in your own lobby, join a public lobby, or jump straight into matchmaking — open seats are filled automatically with other players or AI opponents.

Learn from thousands of lectures

In the Discover section you'll find a constantly growing library of public learning packs: languages, capital cities, history, sciences, programming, and much more. Every pack can be loaded straight into a competition so you can test your material immediately, in a playful way.

Create your own content

Need something specific for your class, your studies, or your language course? In the Create section you build your own vocabulary lists, quiz questions, and lectures — manually or with AI assistance that automatically generates fitting questions from your material. Keep your results private, share them with your class, or make them publicly available.

Teams, leaderboards, and achievements

Join a team in the Teams section to play together with friends against other groups. Personal progress, statistics, and unlocked achievements are always available on your progress profile. Regular players climb the leaderboards — and with every round get new tasks tailored to their personal weak spots.

Who is Stacktags for?

Stacktags is for everyone who takes learning seriously but finds the classic flashcard style too dry: students preparing for exams; university students reviewing a subject with their study group; language learners who want to solidify vocabulary in a game context; teachers who want to activate their class with a motivating quiz format — and of course, anyone who simply enjoys testing their knowledge in a fair competition.

App screenshots

A look at the most important areas of Stacktags — from the lobby selection to the live quiz, the map-conquest mode, and your own learning content.

Stacktags competition lobby with game mode selection (Fast Quiz, Bombatags, Block Hill, Europe, Africa, Roman Empire, Japan), folder selection, and 3D preview of the Europe map — The competition lobby — pick a game mode (Fast Quiz, Bombatags, Block Hill, or a 3D map conquest), select learning folders from your archive, and start alone or with other players.

Stacktags quiz arena with a multiple-choice question and English vocabulary answers, player list with Tim and three AI opponents on the left — Live multiplayer quiz: all players receive the same question at the same time. Points are awarded for speed and accuracy; AI opponents fill open seats automatically.

Stacktags Roman Empire map – 3D map-conquest mode with provinces colored per player and attack selection — The map-conquest mode (here: Roman Empire): correct answers conquer provinces, wrong ones lose them. Strategy and knowledge in a Risk-style game mechanic.

Stacktags archive showing learning folders: Chinese HSK 2 shopping and market, Chinese HSK 3 car workshop, capital cities, everyday English vocabulary, kitchen history and curiosities — The archive is where you manage your own and public learning folders: languages, vocabulary, capital cities, history, and any other topic — each with tags, statistics, and progress tracking.

Stacktags vocabulary section Chinese HSK 3 in the car workshop with German-Chinese terms such as car, tire, brake, engine, and pinyin pronunciation — Detailed view of a learning pack: vocabulary organized in sections, with original script, pronunciation, and translation. From here you can start a quiz round with exactly these vocabulary entries.

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