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Be the first to review Girl Genius: Adventures in Castle Heterodyne
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.
Game modes: Single player
Right now the lowest price for Girl Genius: Adventures in Castle Heterodyne we're tracking is $6.09 at Kinguin — 80% below Steam's $29.99. We compare 6 stores and prices refresh every few minutes.
The lowest price we've recorded for Girl Genius: Adventures in Castle Heterodyne is $6.09 at Kinguin on July 18, 2026. The current best price matches that all-time low — historically a good time to buy.
90% of 108 Steam user reviews for Girl Genius: Adventures in Castle Heterodyne are positive ("Very Positive").
Girl Genius: Adventures in Castle Heterodyne released on September 5, 2023, developed by Rain Games and published by Rain Games.
Girl Genius: Adventures in Castle Heterodyne is available on PlayStation 4, Linux, PC (Microsoft Windows), PlayStation 5, Mac, Nintendo Switch. It supports single player.
The cheapest Girl Genius: Adventures in Castle Heterodyne price right now is $6.09 at Kinguin, 80% below the Steam price.
| Store | Discount | Price | Buy link |
|---|---|---|---|
 KinguinBest priceAll-time low | — | $6.09 | Buy Girl Genius: Adventures in Castle Heterodyne at Kinguin |
 Gamivo | — | $6.50 | Buy Girl Genius: Adventures in Castle Heterodyne at Gamivo |
 Instant Gaming | -79% | $6.85 | Buy Girl Genius: Adventures in Castle Heterodyne at Instant Gaming |
 GamersGate | — | $9.00 | Buy Girl Genius: Adventures in Castle Heterodyne at GamersGate |
 Steam | — | $29.99 | Buy Girl Genius: Adventures in Castle Heterodyne at Steam |
 Green Man Gaming | — | $29.99 | Buy Girl Genius: Adventures in Castle Heterodyne at Green Man Gaming |
All-time low: $6.09 at Kinguin on Jul 18, 2026 — the current best price matches it, a good time to buy.
Prices in USD, refreshed every few minutes. Switch currency on this page for EUR/GBP/BRL and more.
