Costume Quest: Steam price vs key
Costume Quest costs €3.10 as a key at BuyCheapKeys, versus a regular price of €9.99 on the Steam Store: you save €6.89 (69% less). The key activates on your Steam account and it's exactly the same game (prices from October 3, 2026).
- Instant deliveryKey by email and in your account
- Full guaranteeReplacement or refund
- Secure paymentCard, PayPal, Google Pay, Apple Pay
- Activates on SteamSame game in your library
- Up to 4% cashbackWith the VIP Club
Should I buy Costume Quest now? A steal: buy it now
The key costs €6.89 less than the regular Steam price and is at its lowest recorded price. With 95% positive reviews, it's a safe buy.
Price score: 10/10 · The key is 69% below the regular Steam price.
The same game, for less
A Steam key gives you exactly the same as buying on Steam. Only the price changes.
Available Costume Quest keys
1 offer, sorted by price
- €3.10Buy
Costume Quest
CheapestSteam keyGlobal-€6.89 compared with the Steam regular price
Costume Quest price history
- Steam regular price€9.99
- BuyCheapKeys key€3.10
We've been tracking this game since October 3, 2026. The chart will appear once there are a few days of data.
How to activate the Costume Quest key
- 1
Buy the key
Choose the Costume Quest offer and pay. You get the key instantly.
- 2
Open Steam
Go to “Games” › “Activate a Product on Steam”.
- 3
Redeem and play
Paste the key and the game stays in your library forever.
Costume Quest FAQ
›How much is Costume Quest on Steam?
The regular Steam price of Costume Quest is €9.99. At BuyCheapKeys the Steam key costs €3.10, €6.89 less.
›Where to buy Costume Quest cheapest?
The cheapest option is the BuyCheapKeys Steam key for €3.10, 69% below the regular Steam price. Instant delivery and it activates on Steam.
›Is the Costume Quest key the same game as on Steam?
Yes. When you redeem the key, Costume Quest is added to your Steam account with achievements, cloud saves and updates, just as if you bought it on Steam.
›What is the lowest price for Costume Quest at BuyCheapKeys?
The lowest recorded price for the key at BuyCheapKeys is €3.10 (October 3, 2026). Today it costs €3.10.
›Will the Costume Quest key work in my country?
We list Global and Europe region keys. Each BuyCheapKeys product page tells you whether it can be activated in your country before you buy.
›Is it safe to buy from BuyCheapKeys?
Yes. Delivery is instant by email and in your account, we accept card, PayPal, Google Pay and Apple Pay, and every purchase is covered by a replacement or refund guarantee.
›Does Costume Quest work on Steam Deck?
Valve rates it “Verified” on Steam Deck. Once the key is activated on Steam you can play it on Steam Deck just like on PC.
›Is Costume Quest worth it?
It has 95% positive reviews out of 2,609 on Steam (“Overwhelmingly Positive”), was released in 2011 and is developed by Double Fine Productions. Genres: RPG, Adventure, Comedy, Casual.
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Costume Quest
€3.10