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Final prices with fees
Payment fees included. This page sums up the best price on each platform; each product page has the full comparison of stores, formats and regions.
Girl Genius: Adventures in Castle Heterodyne costs today from 5,99 € on PC. Its lowest recorded price on PC was 5,99 € excl. fees (July 2026). We monitor 45 verified stores and have tracked its price for 100 days.
Prices include the GoCDKeys coupon where one applies and the store payment fee. The final price is confirmed on each platform page.Prices include the GoCDKeys coupon where one applies and exclude store payment fees. The final price is confirmed on each platform page.
See how the price of Girl Genius: Adventures in Castle Heterodyne has moved on PC and compare today's price with its lowest recorded price before you buy.
Girl Genius: Adventures in Castle Heterodyne has gone as low as 5,99 € over the last 6 months (July 2026). Girl Genius: Adventures in Castle Heterodyne has not dropped below 5,99 € in 3 months (excl. fees).
Last 6 months · the hollow circle marks each platform’s lowest price.
The lowest price we’ve recorded for Girl Genius: Adventures in Castle Heterodyne is 5,99 € on PC (Instant Gaming, July 2026). Right now, PC is practically back at that low. That low landed during Steam’s Summer Sale — that is when the PC price really moves.
Explore the price history →We have tracked Girl Genius: Adventures in Castle Heterodyne since July 7, 2026 among the 45 verified stores we monitor, reading prices every 2 hours. Prices shown are activation-code format unless stated otherwise; out-of-stock offers and outlier listings are excluded. Today 3 of them have Girl Genius: Adventures in Castle Heterodyne deals.
| Platform | May | Jun | Jul | Aug | Sep | Oct |
|---|---|---|---|---|---|---|
| PC | — | — | 5,99 € | 5,99 € | 5,99 € | 5,99 € |
See how many people are playing Girl Genius: Adventures in Castle Heterodyne right now and what players and critics think of it.
Very Positive
60 reviews · 87% positive
Steam only, not all platforms
Concurrent players are Steam players only, not the total across every platform. Each rating shows its source.
PC is the only platform with an offer today, at 5,99 €.
| Platform | Current price | Lowest it has ever been (excl. fees) | What it usually costs (excl. fees) | Verdict | Offers |
|---|---|---|---|---|---|
| PC | Default format: 5,99 € With accounts: 5,99 € Steam Key format price | Default format: 5,99 € With accounts: 5,99 € | Default format: 5,99 € With accounts: 5,99 € | Default format: All-time low With accounts: All-time low | Steam Key (3) → |
Today only PC has a price in this format: 5,99 €.
On PC the price has held at 5,99 € excl. fees since July 2026.
The next Steam sale starts on October 26, 2026, but on PC the price is already below what it usually costs: waiting will save you very little.
On PC, Girl Genius: Adventures in Castle Heterodyne costs 5,99 € against the 28,99 € charged by Steam: 79% less.
| Platform | Official store | Official price | Best price here | Saving |
|---|---|---|---|---|
| PC | Steam | 28,99 € | 5,99 € | −23,00 € −79% |
The biggest saving is on PC: 23,00 € less than at Steam.
The most common questions about Girl Genius: Adventures in Castle Heterodyne’s price, answered with today’s data.
Girl Genius: Adventures in Castle Heterodyne costs today from 5,99 € on PC. Compared among the 45 verified stores we monitor, updated every 2 hours.
On PC: 5,99 €, the only platform with an offer right now.
Its lowest price so far was 5,99 € excl. fees on PC (July 2026). The next Steam sale starts on October 26, 2026: if you can wait, it pays off. Set an alert and we will tell you when it drops.
Yes. On PC it is at its lowest recorded price (5,99 €).
The stores we compare source their codes in different markets and compete with each other, so their prices drop sooner and further than those on Steam. The code is the same and activates the same way in your account.
5,99 € excl. fees on PC, at Instant Gaming (July 2026).
We have no record of it dropping on a previous Black Friday. This year it falls on November 27, 2026: set an alert and we will tell you if it drops.
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