Mainlining — cheap CD keys, compare prices
Is it worth buying?
- Reviews are solid. (Metacritic 73 · Steam 77%)
- The price is above its low (was €0.90), but within a reasonable range. Notify me on a drop →
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
Mainlining is a point-and-click hacking adventure by Rebelephant, published by ReadGraves in 2017, played entirely through an in-game desktop interface that mirrors real computer navigation. After a breach at intelligence agency MI7, players investigate and dismantle a cyber-criminal network across a series of interconnected cases.
Did you know?
Mainlining is played entirely through an in-game computer desktop interface, replacing traditional game environments with a simulated desktop as its core mechanic.
Best price today
€1.07
all-time low: official €1.07 · keyshop €0.90 (+19%)
The cheapest Mainlining key right now costs €1.07 at Steam — the best of 13 compared offers. The lowest price we have recorded for this game: €0.90.
The average low over the past 5 months was €1.06.
↳ chosen by the region label on the key — not a guarantee
Prices as of
Steam best price Official store
Kinguin Marketplace
Kinguin Marketplace
GameSeal Marketplace
GameSeal Marketplace
Fanatical Official store
Gog Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Mainlining prices by store 10
| Store | Type | Price |
|---|---|---|
| Steam | Official store | €1.07 |
| Kinguin | Marketplace | €1.14 |
| Instant Gaming | Marketplace | €1.59 |
| Driffle | Marketplace | €1.61 |
| K4G | Marketplace | €1.73 |
| GameSeal | Marketplace | €1.79 |
| G2A | Marketplace | €2.42 |
| Loaded | Marketplace | €7.39 |
| Fanatical | Official store | €8.08 |
| Gog | Official store | €8.92 |
Lowest — official stores
€1.07
Oct 2026
Lowest — keyshops
€0.90
Jul 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €1.07 | €1.14 |
| Sept 2026 | €8.08 | €0.91 |
| Aug 2026 | €8.08 | €0.90 |
| Jul 2026 | €8.08 | €0.90 |
| Jun 2026 | €10.79 | €1.54 |
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, Kinguin, Instant Gaming, Driffle, K4G, GameSeal, G2A, Loaded, Fanatical
- GOG key — on GOG.com → Redeem a code (or in GOG Galaxy: Add games & friends → Redeem GOG code). Stores with this activation: Gog
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All-time low so far: €0.90
System requirements
| Minimum | |
|---|---|
| OS | Windows 7 or better |
| Processor | Intel i3 2.6GHz |
| Memory | 4 GB RAM |
| Graphics | Intel HD Graphics 4000 or better |
| DirectX | Version 9.0c |
| Storage | 400 MB available space |
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About this game — FAQ
Can Mainlining be played single-player?
Yes, Mainlining is a single-player game.
What languages does Mainlining support?
Mainlining is available in: English.
FAQ
Where is the cheapest place to buy a Mainlining key?
The cheapest Mainlining key is currently sold by Steam for €1.07. That is the best of 13 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €0.90.
How much does Mainlining cost?
Mainlining currently costs from €1.07 — 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.