Girl Genius: Adventures in Castle Heterodyne — prices on PC
How much does it cost today?
- PC: from 5,99 € at Instant Gaming
Updated · Final price including applicable fees
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Best prices by platform
Check the best deal for each version or open its page to see them all.
Final prices with fees
Xbox Series X|S
PS5
Nintendo Switch 2
Nintendo SwitchPayment 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 120 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.
Price history for Girl Genius: Adventures in Castle Heterodyne
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 4 months (excl. fees).
Girl Genius: Adventures in Castle Heterodyne has ranged between 5,99 € and 19,54 € excl. fees over the last 6 months, hitting its lowest point in July 2026. Girl Genius: Adventures in Castle Heterodyne has not dropped below 5,99 € in 4 months (excl. fees).
Last 6 months · the hollow circle marks each platform’s lowest price.
The thick line is the KEY format price. The thin one is the same game as an account, usually cheaper but not a key.
Recorded lows (excl. fees)
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 →How we measure these prices
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 4 of them have Girl Genius: Adventures in Castle Heterodyne deals.
Month-by-month lows
| Platform | Jun | Jul | Aug | Sep | Oct | Nov |
|---|---|---|---|---|---|---|
| PC | — | 5,99 € | 5,99 € | 5,99 € | 5,99 € | 5,99 € |
Players & reviews
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.
Which platform is cheapest?
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) → |
Where it stands today
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 December 17, 2026, but on PC the price is already below what it usually costs: waiting will save you very little.
How much do you save on Girl Genius: Adventures in Castle Heterodyne versus the official store?
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.
Frequently asked questions about pricing
The most common questions about Girl Genius: Adventures in Castle Heterodyne’s price, answered with today’s data.
How much does Girl Genius: Adventures in Castle Heterodyne cost?
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.
Which platform is Girl Genius: Adventures in Castle Heterodyne cheapest on?
On PC: 5,99 €, the only platform with an offer right now.
Will Girl Genius: Adventures in Castle Heterodyne get cheaper?
Its lowest price so far was 5,99 € excl. fees on PC (July 2026). The next Steam sale starts on December 17, 2026: if you can wait, it pays off. Set an alert and we will tell you when it drops.
Is Girl Genius: Adventures in Castle Heterodyne on sale right now?
Yes. On PC it is at its lowest recorded price (5,99 €).
Why is Girl Genius: Adventures in Castle Heterodyne cheaper here than on Steam?
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.
What is the lowest price Girl Genius: Adventures in Castle Heterodyne has reached?
5,99 € excl. fees on PC, at Instant Gaming (July 2026).
Will Girl Genius: Adventures in Castle Heterodyne drop in price on Black Friday?
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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