Buy Mark of the Deep Steam Key
Mark of the Deep Steam Key: compare prices from 31 offers (November 2026)
A Mark of the Deep Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €2.39 (no fees, -65%) at Cdkeys Com, 65% below the €6.82 (no fees) Steam price · 17 verified stores, 31 offers in stock · Updated 29min ago.
Official stores are authorized distributors, and while their prices may be higher than Key stores, their reliability is 100%.
“Choose it if you don’t mind the price difference”Key stores are resellers and marketplaces, which is why they are usually cheaper than official stores. We only show the best ones, so you can rest assured. Plus, we offer our guarantee against any issues.
“Choose it if you’re looking for a great discount”Prices change depending on the selected payment method.
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Final prices with fees
About Mark of the Deep

Mark of the Deep is an epic pirate adventure with a strong narrative and a thrilling mix of elements from acclaimed Metroidvania and Souls-Like games. Embark on this journey as the pirate Rookie, explore the mysteries of a cursed island and find your missing pirate crew!
EMBARK ON THIS EPIC PIRATE ADVENTURE!
A pirate ship wrecked on a mystic island, till then known only by myths n’ tales. Play as Marcus “Rookie” Ramsey and explore the eerie areas of this island surrounded by a mysterious curse in search of your missing crew: the Angry Mermaids!
DEFEAT CURSED CREATURES TO SURVIVE!
In this diversely hostile environment, you need to face a wide variety of dangers to find your lost crewmates, including abyssal monsters, undead creatures and menacing cultists. Fight against over 80 enemies and 16 bosses in challenging battles inspired by souls-like games!

UNLEASH THE POWER OF YOUR MARKS!
As a newfound Mark Keeper, Rookie can unlock new abilities that change how you fight enemies and explore the environments! Discover new skills, weapons and trinkets to upgrade your combat abilities and make your way through new areas of the island.
GATHER YOUR CREWMATES!
Meet a fully-voiced cast of pirates, abyssal creatures and many other characters trapped in the cursed island with you! Rescue old friends and make new allies as you unravel the mysteries of the native inhabitants of the island: the Old Folks.
CHOOSE YOUR OWN PATH!
The abyssal corruption affects everyone around you, including your cherished allies. You have the choice to help those in need by completing their quests and dealing with hard choices along the way. Discover multiple endings in your goal to escape the island!

JOIN OUR CREW!
From the developers of Dandy Ace and No Heroes Here, join the Mad Mimic Discord Server to meet the Mark of the Deep community and share your experience with the game!
How much does Mark of the Deep for PC cost right now?
Mark of the Deep for PC starts at €2.39 (no fees) at Cdkeys Com, a Steam key, which is 65% under the €6.82 (no fees) it costs on the official store.
That price is for the Deluxe edition. The plain standard edition starts at €2.23 (€2.63 with fees) at HRKGame.
With 31 offers across 17 stores there is enough competition for the price to move, so the gap between the cheapest and the rest is worth checking before you buy.
Is it worth buying the Steam Key for Mark of the Deep now or waiting?
That €2.23 (€2.63 with fees) key is expensive for what it usually costs.
- Those €2.23 (€2.63 with fees) are 7% above what it usually costs, measured on the store price.
- 16 stores sell the Steam Key at the same time, and with that much competition the price moves almost daily.
- Across the 240 days we have tracked it, it has only been pricier than today on 3 days. The lowest it has ever cost is €1.74.
Worked out from 2,938 daily records of the Steam Key for Mark of the Deep across 18 stores. See the full price history.
The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.
Can you activate Mark of the Deep in US?
24 of the 31 offers work on US — the Global ones plus the ones issued for your own region.
Why is there such an expensive Mark of the Deep offer?
One listing is worth ignoring: the Steam key that GOG has at €27.82 (no fees) is more than 11 times the cheapest offer and is not what this game costs. The number to work from is €2.23 (€2.63 with fees) at HRKGame.
Information about Mark of the Deep for PC
Most common FAQs when buying Mark of the Deep for PC in digital format:
Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.
If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.
There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.
In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.
Need more help? Use our FAQs.
Mark of the Deep
Is it worth it?
- 80/100Critics' average score
- 67%Critics recommend it9 critic reviews
- 72%Steam reviewsMostly Positive · 236 reviews
What the press says
Mark of the Deep is one of the best experiences I've had lately, the only existing problems are so minor you might just not notice... Read more
It may not look overly original on the surface, but dive a little further and Mark of the Deep is an engaging, compelling little adventure. Read more
The genre is overloaded with Hades, Curse of the Gods, and Hollow Knight knock-offs, and it’s difficult for games akin to the Greats to really... Read more
Mark of The Deep is beautiful and stays difficult throughout while masterfully sculpting a story. Read more
All in all, Mark of the Deep is mixed. The idea of having elements from a variety of genres sounds good on paper, but if... Read more
As much as I wanted to like Mark of the Deep, I found it to be more annoying than enjoyable. Although the unexpectedly pleasant soundtrack... Read more
Mark of the Deep stands out as an engaging and well-constructed experience, combining an intriguing narrative with refined exploration and combat mechanics. Despite some ups... Read more
I found the combat to be quite fun and, despite the low selection of equipment at the beginning, it managed to challenge and engage me... Read more
About the game
* languages with full audio
Requirements
- Windows 10+
- Dual Core 2.4 GHz
- 4 GB RAM
- 1GB VRAM / DirectX 10+ support
- Version 10
- 5 GB available space
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