Mars Quest — 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
Mars Quest is an action-oriented casual indie game set within a Mars-themed space frame. The pace is brisk and approachable, with focus on reflexes and simple, direct fun. The player advances through challenges by clearing obstacles, with an easy on-ramp suited to shorter sessions. The mix of action and casual design keeps it quick to learn while built to deliver immediate momentum during play.
Did you know?
An action-oriented casual indie game set in a Mars-themed space frame, with a brisk, approachable pace focused on reflexes and short, direct sessions.
Best price today
€1.99
all-time low: official €1.99 near low
The cheapest Mars Quest key right now costs €1.99 at Steam. The lowest price we have recorded for this game: €1.99.
The average low over the past 5 months was €1.99.
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
€1.99
Jul 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €1.99 | — |
| Sept 2026 | €1.99 | — |
| Aug 2026 | €1.99 | — |
| Jul 2026 | €1.99 | — |
| Jun 2026 | €1.99 | — |
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: €1.99
System requirements
| Minimum | |
|---|---|
| OS | 7 |
| Memory | 600 MB RAM |
| Storage | 2 GB available space |
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About this game — FAQ
Does Mars Quest have co-op?
Yes, Mars Quest supports online and LAN co-op.
Does Mars Quest have multiplayer?
Yes, Mars Quest has multiplayer. It supports PvP.
Does Mars Quest support crossplay?
Yes, Mars Quest supports cross-platform multiplayer.
Can Mars Quest be played single-player?
Yes, besides multiplayer modes, Mars Quest can also be played solo (single-player).
What languages does Mars Quest support?
Mars Quest is available in: English, Polish.
FAQ
Where is the cheapest place to buy a Mars Quest key?
The cheapest Mars Quest key is currently sold by Steam for €1.99. The lowest price we have ever recorded for this game: €1.99.
How much does Mars Quest cost?
Mars Quest currently costs from €1.99 — 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.