Subway Builder — cheap CD keys, compare prices
Is it worth buying?
- The price is above its low (was €21.36), 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
Subway Builder is a detailed public-transit simulation where players design an underground rail network from the ground up, working within realistic budget and infrastructure constraints. The aim is to craft a metro system worthy of the city it's built for. The seven-person team behind it — Colin Miller, EJ Fox, Curran Kelleher, Nate Maue, Alex Wohlbruck, Piero Maddaleni, and Brooks Flannery — is published by Borough Studio, with release set for 2026.
Best price today
€28.49
all-time low: official €21.36 (+33%)
The cheapest Subway Builder key right now costs €28.49 at Steam. The lowest price we have recorded for this game: €21.36.
The average low over the past 3 months was €26.11.
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
€21.36
Jul 2026
Price history
last 60 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Sept 2026 | €28.49 | — |
| Aug 2026 | €28.49 | — |
| Jul 2026 | €21.36 | — |
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: €21.36
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 7 64bit | Windows 10 64bit |
| Memory | 4 GB RAM | 8 GB RAM |
| Storage | 700 MB available space | 1 GB available space |
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About this game — FAQ
Can Subway Builder be played single-player?
Yes, Subway Builder is a single-player game.
What languages does Subway Builder support?
Subway Builder is available in: English, French, Italian, German, Spanish - Spain, Arabic, Czech, Dutch and 15 more.
Does Subway Builder use Steam Cloud saves?
Yes, Subway Builder uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a Subway Builder key?
The cheapest Subway Builder key is currently sold by Steam for €28.49. The lowest price we have ever recorded for this game: €21.36.
How much does Subway Builder cost?
Subway Builder currently costs from €28.49 — 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.