Buy cheap Heat Signature: Edition Upgrade key
21.09.2017
Suspicious Developments
DRM
Region Global
Heat Signature: Edition Upgrade currently costs $16.78 at Humble Store as Steam-Game key. 1 offer is currently available. As of 7. November 2026, 17:47.
Automatically checked, Updated 1 hour ago
How we compare
This game key is a DLC and the base game Heat Signature is required to play. Included in Supporter's Edition
Price comparison
One result
| Store | Product | Coupon | Price | Go to store |
|---|---|---|---|---|
Humble Store
|
Steam Standard Key
2701649
Updated:
In stock
DRM: Steam
Region: Global
Edition: Standard
|
$16.78Price$16.78
|
Go to store |
| Released | 21. September 2017 |
| Type | DLC |
| Website | to Website |
| Developer | |
| Publisher | Suspicious Developments |
Here you'll find a selection of the cheapest offers in the Heat Signature: Edition Upgrade CD Key: Compare Prices. Save time and money by using our overview of the best game store offers to find the best price and get to your desired key quickly. Offers from the major key shops are updated daily, so you can always find the best deal.
Price history
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Heat Signature: Edition Upgrade on Steam
Source: SteamSystem requirements
Minimum
- Operating system *
- Windows 7
- Processor
- 1.7GHz dual-core CPU
- Graphics
- Intel HD 5000 or better (GeForce and Radeon tend to be better)
- Storage
- 5 GB available storage
Heat Signature: Edition Upgrade is a separately available add-on for the PC version of Heat Signature. It does not expand the missions of the base game, but unlocks the bonus content of the Supporter’s Edition. To use it, you must own the base game on Steam.
Development prototypes and developer commentary
The upgrade includes eight early, playable prototypes from the roughly three-and-a-half-year development. They show you how the spaceship stealth approach changed. In nine developer videos, the team explains key design decisions; together the commentary runs about 70 minutes. The prototypes are unfinished historical development builds and may contain bugs.
Complete soundtrack as MP3
It also includes 19 music tracks totalling around 83 minutes of playtime as MP3 files at 320 kbit/s. You can access the bonus files via an additional menu entry when you start the main game. If you already own the Supporter’s Edition, you already have this content and do not need to buy the upgrade again.
Common questions about Heat Signature: Edition Upgrade
How much does Heat Signature: Edition Upgrade cost right now?
Heat Signature: Edition Upgrade currently costs $16.78 at Humble Store as Steam-Game key. 1 offer is currently available. As of 7. November 2026, 17:47.
Where is Heat Signature: Edition Upgrade cheapest?
The cheapest is Heat Signature: Edition Upgrade at Humble Store, as Steam-Game key for $16.78.
Which platform do these offers apply to?
Offers for this add-on are compared for PC. Check the edition, activation service and region on each offer.
Which base game does this add-on belong to?
This add-on content requires the base game Heat Signature.
Which languages are listed for this version?
Englisch (Oberfläche und Entwicklerkommentare). The details don't distinguish between interface, subtitles and voice audio.
What are the minimum requirements for the PC version?
Operating system: Windows 7
Processor: 1.7GHz dual-core CPU
Graphics: Intel HD 5000 or better (GeForce and Radeon tend to be better)
Storage: 5 GB available storage
Source: Steam product page.
Processor: 1.7GHz dual-core CPU
Graphics: Intel HD 5000 or better (GeForce and Radeon tend to be better)
Storage: 5 GB available storage
Source: Steam product page.
Which release date is listed?
Release date of this version: 21.09.2017.
Reviews
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Screenshots
Source: Steam
