Girl Genius: Adventures In Castle Heterodyne
A fabulous Action Adventure game based on the wonderful graphic novel series, Girl Genius™, by authors Phil & Kaja Foglio.
Offers
What are keyshops?Official stores
Official stores with direct support.
Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Demo (1)
Try this game before buying.
About Girl Genius: Adventures In Castle Heterodyne
ACTION, RRRRRROMANCE (pronounced like Provence) and MAD SCIENCE!
Discover the award winning, gaslamp fantasy world of “Girl Genius™”! Experience Agatha Heterodyne’s story, as she navigates the hostile hallways, catacombs and kitchens of her ancestral home, Castle Heterodyne.As the Lost Heir to a mad family, she must return the ancient fortress to its former glory and ascend the throne as a "True Heterodyne". Only then can she stand up to the might of the Wulfenbach Empire and other power hungry usurpers. But first, she has to contend with a corrupted and insane AI controlling the castle, its spiky death traps, and bottomless doom-pits. Not to mention the painfully pink cherry on top, Zola Heterodyne. Another lost child? Or just another villain here to steal your thunder.
Time to find out.
Gameplay
- Build tools like the Grapple Gun and the Wrencherang at the Workbench, and use your tools to explore and solve the castle’s challenges.
- Discover numerous sights and secrets, by being perceptive and using your tools to the fullest.
- Defeat foes in furious melee combat or with explosive gadgets, and utilize the environment to your advantage using your tools.
- Use your trusty Dingbot minion to explore places Agatha can’t reach, by moving in tight spaces, digging beneath or soaring above danger.
- Use the Dingbot to solve lock puzzles, and operate the internal machinery of the castle.
- As Agatha’s power over the castle grows, command the castle AI to release traps at your foes, and activate mechanisms.
- Use the unique “Build System”, rebuilding scrap traps into objects like the Springclank, Grappleclank and the special Rollerclank, giving the player a suite of tools for creative spatial puzzle solving.
- Interact with several of the fantastic characters from “Girl Genius™”, like Gilgamesh Wulfenbach, Tarvek Sturmvoraus and many others.
- Read the Girl Genius™ graphic novels in the game! Note! This feature is in English only.
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Game details
Game details
Age ratings
Game modes
Girl Genius: Adventures In Castle Heterodyne price history
Lowest tracked price: €4.82 (Jul 23, 2026) · current best: €4.82 across 6 stores.
Girl Genius: Adventures In Castle Heterodyne player count & reviews
89% positive reviews all-time · 3 peak players in the last 30 days.
Girl Genius: Adventures In Castle Heterodyne — frequently asked questions
Where can I buy Girl Genius: Adventures In Castle Heterodyne at the cheapest price?
Right now the cheapest offer for Girl Genius: Adventures In Castle Heterodyne is €4.82 at Gamivo. KingsPrice compares 6 offers from 6 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Girl Genius: Adventures In Castle Heterodyne has ever been?
The lowest price KingsPrice has tracked for Girl Genius: Adventures In Castle Heterodyne is €4.82 (recorded on Jul 23, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Girl Genius: Adventures In Castle Heterodyne?
Girl Genius: Adventures In Castle Heterodyne peaked at 3 concurrent players on Steam in the last 30 days (highest on Jul 8, 2026). The player chart on this page updates daily.
Is it safe to buy a Girl Genius: Adventures In Castle Heterodyne Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Girl Genius: Adventures In Castle Heterodyne at a discount?
Create a free price alert on this page and KingsPrice will email you when Girl Genius: Adventures In Castle Heterodyne drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7 (SP1+), Windows 10 and Windows 11, 64-bit versions only.
- Processor: X64 architecture with SSE2 instruction set support
- Graphics: DX10, DX11, and DX12-capable GPUs
- Storage: 4 GB available space
Recommended
- Requires a 64-bit processor and operating system
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