Proteus — cheap CD keys, compare prices
Is it worth buying?
- Reviews are excellent. (Metacritic 80 · Steam 76%)
- The price is at or near its all-time low — a good time to buy.
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
A meditative first-person exploration adventure set on a dream-like island, where the player's mere presence and observation shape the experience. The soundtrack is generated dynamically from the surroundings.
Did you know?
Proteus was created by Ed Key and composer David Kanaga and is an early example of the exploratory 'walking simulator' genre.
Best price today
€1.77
all-time low: official €4.99 · keyshop €1.77 near low
On Steam: €4.99 — you save 65% here
The cheapest Proteus key right now costs €1.77 at Kinguin — the best of 7 compared offers. The lowest price we have recorded for this game: €1.77. The cheapest official store price is €4.99 at Steam.
The average low over the past 5 months was €2.86.
Prices as of
GameSeal Marketplace
Steam Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Proteus prices by store 7
| Store | Type | Price |
|---|---|---|
| Kinguin | Marketplace | €1.77 |
| G2A | Marketplace | €3.00 |
| GameSeal | Marketplace | €3.58 |
| Steam | Official store | €4.99 |
| Instant Gaming | Marketplace | €6.19 |
| K4G | Marketplace | €7.20 |
| Driffle | Marketplace | €9.59 |
Lowest — official stores
€4.99
Oct 2026
Lowest — keyshops
€1.77
Sept 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €4.99 | €1.77 |
| Sept 2026 | €9.99 | €1.77 |
| Aug 2026 | €9.99 | €2.53 |
| Jul 2026 | €9.99 | €2.93 |
| Jun 2026 | €9.99 | €5.29 |
Lowest in-stock price per month from our price history; the current month is the low so far.
How to activate your key
- Steam key — open the Steam client → Games → Activate a Product on Steam → enter the key. Stores with this activation: Kinguin, G2A, GameSeal, Steam, Instant Gaming, K4G, Driffle
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All-time low so far: €1.77
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows XP SP3 | — |
| Processor | 1.8GHz | 2.2GHz Dual Core |
| Memory | 3 GB RAM | 4 GB RAM |
| Graphics | Intel HD Graphics 3000 | 512 MB NVidia or ATI graphics card |
Similar games
Video reviews
7:41 Proteus Modular Gaming Controller Review: A Customizable Controller Designed for Xbox
CNET
6:15 Proteus C-type review - a British classic re-imagined | evo REVIEWS
EVO
5:19 In Gear: REV’IT! Proteus Armor Jacket Review
Motorcycle.com
Reviews are made and published by independent YouTube channels; they load only on click.
About this game — FAQ
Can Proteus be played single-player?
Yes, Proteus is a single-player game.
Does Proteus support a controller/gamepad?
Yes, Proteus has full controller support.
What languages does Proteus support?
Proteus is available in: English.
FAQ
Where is the cheapest place to buy a Proteus key?
The cheapest Proteus key is currently sold by Kinguin for €1.77. That is the best of 7 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €1.77.
How much does Proteus cost?
Proteus currently costs from €1.77 — the cheapest offer across the stores we track. For comparison, the game costs €4.99 on Steam, so buying a key saves you about 65%.
Is Kinguin an official store or a keyshop?
Kinguin is a keyshop (marketplace) where independent sellers list keys, so prices are often lower than in official stores. Every offer on ulov.gg is clearly labeled with its store type.
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. So before paying, check the seller's buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.