Question Mark — cheap CD keys, compare prices
Is it worth buying?
- 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
Question Mark is a first-person, physics-driven logic puzzle game in which the player overcomes obstacles to keep moving forward. It was developed by Rangel Oblivion and published by Gurunga Games in 2023.
Best price today
€2.90
all-time low: official €2.90 near low
The cheapest Question Mark key right now costs €2.90 at Steam. The lowest price we have recorded for this game: €2.90.
The average low over the past 4 months was €3.53.
Prices as of
Steam best price Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Lowest — official stores
€2.90
Jul 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €2.90 | — |
| Sept 2026 | €4.15 | — |
| Aug 2026 | €4.15 | — |
| Jul 2026 | €2.90 | — |
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: Steam
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All-time low so far: €2.90
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 10 or higher | Windows 10 or higher |
| Processor | Intel core 2 Quad or AMD Athlon II X2 250 | Intel i5-4570 or AMD Ryzen 3 3200G |
| Memory | 2 GB RAM | 4 GB RAM |
| Graphics | 2 GB, 64 bits | 4 GB, 128 bits |
| Storage | 5 GB available space | 5 GB available space |
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About this game — FAQ
Can Question Mark be played single-player?
Yes, Question Mark is a single-player game.
What languages does Question Mark support?
Question Mark is available in: English, Portuguese - Brazil, Spanish - Latin America, German, French, Italian, Greek, Russian and 5 more.
FAQ
Where is the cheapest place to buy a Question Mark key?
The cheapest Question Mark key is currently sold by Steam for €2.90. The lowest price we have ever recorded for this game: €2.90.
How much does Question Mark cost?
Question Mark currently costs from €2.90 — the cheapest offer across the stores we track.
Is Steam an official store or a keyshop?
Steam is an official store — keys come directly from the publisher or an authorized distributor.
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.