Plankton: Steam price vs key
Plankton has a regular Steam price of €0.99 and costs €1.89 as a key at BuyCheapKeys (October 4, 2026). Turn on the price alert and we'll tell you when it drops.
- 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 Plankton now? Wait for a drop
Turn on the price alert and we'll let you know as soon as the key gets cheaper.
Price score: 0/10 · The key does not beat 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 Plankton keys
1 offer, sorted by price
- €1.89Buy
Plankton
CheapestSteam keyGlobal
Plankton price history
- Steam regular price€0.99
- BuyCheapKeys key€1.89
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 Plankton key
- 1
Buy the key
Choose the Plankton 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.
Plankton FAQ
›How much is Plankton on Steam?
The regular Steam price of Plankton is €0.99. At BuyCheapKeys the Steam key costs €1.89.
›Where to buy Plankton cheapest?
We track the BuyCheapKeys key price (€1.89) every day. Turn on the alert to know when it drops.
›Is the Plankton key the same game as on Steam?
Yes. When you redeem the key, Plankton 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 Plankton at BuyCheapKeys?
The lowest recorded price for the key at BuyCheapKeys is €1.89 (October 4, 2026). Today it costs €1.89.
›Will the Plankton 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.
›Is Plankton worth it?
It has 76% positive reviews out of 80 on Steam (“Mostly Positive”), was released in 2016 and is developed by PanGuoJun. Genres: Casual, Simulation, Indie, Incremental.
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Plankton
€1.89