Dunder Quest Play
Pixel art of a small pebble on a cliff, looking out over an autumn valley toward a smoking kiln

Dunder Quest

A platformer where every stage teaches you a piece of Python.

Guide a pebble across six stages to the kiln. Read the lore scrolls on the way, and use real code to open the path through each stage. Then duel the wizard at the exit: jump into the block with the right answer while you dodge his spells.

Play in your browser Download for desktop

Keyboard, gamepad or touch. On a phone, turn it sideways and use the on-screen buttons.

The trail

Six stages, six lessons

Each stop on the map is a Python topic, and they build on each other: lists first, comprehensions last. Pick a stage to read its lesson and practice its trial here on the site.

The Dunder Quest world map: six stages along a dirt trail from Amber Hollow to Crucible Crown 1 · Amber HollowLists & Indexing2 · Cinder SpanDictionaries & Hashing3 · Kiln MouthLoops & range4 · Smelter's ForkBooleans & Conditions5 · Bellows BridgeFunctions & return6 · Crucible CrownComprehensions
  1. Amber HollowLists & Indexing
  2. Cinder SpanDictionaries & Hashing
  3. Kiln MouthLoops & range
  4. Smelter's ForkBooleans & Conditions
  5. Bellows BridgeFunctions & return
  6. Crucible CrownComprehensions

Inside a stage

Learn it, use it, prove it

  1. A lore scroll card titled Counting from Zero, showing a short list example

    Read the scrolls

    Lore scrolls lie along the route. Touch one and it opens a card with a few lines of code and the idea behind them. Every scroll you read goes into your Spellbook.

  2. A plank bridge built by calling span(5) across the Bellows Bridge chasm

    Code the way forward

    The only way through each stage is a gadget that runs real Python. You slice planks into a bridge, store keys in hash buckets, load a loop into a lift, or call the function that builds a bridge the exact length of the gap. Only the right code gets you across.

  3. The Ash Hexer's duel: his question across the top of the screen and four lettered answer blocks over the arena floor

    Duel the wizard

    A wizard holds every exit. His question shows at the top of the screen, and you answer by jumping into the lettered block while you dodge his spells. Each right answer breaks a ward. A wrong one gets you zapped and a new question. He'll give you a hint if you ask.

28 lore scrolls · 63 trial questions · every snippet checked against real Python

Download

Play without a browser

The desktop builds are the same game, run natively instead of in WebAssembly. They start faster, have no audio unlock step, and keep your save in a normal file instead of browser storage.

CI rebuilds these every time the game changes on main. SHA-256 checksums are on the release page.