Heat Signature: Edition Upgrade
2017 · Suspicious Developments · Action, Adventure, Indie, Simulation
Steam key: you activate it in your Steam account. How to activate it
Price comparison
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Heat Signature: Edition Upgrade: price summary
Right now the best price for Heat Signature: Edition Upgrade is $14.99, on Steam. We haven't found it in any key store, so for now it is only sold on Steam. Since March 2026, its lowest price on Steam in Europe was €2.19 (July 8, 2026). Steam has discounted it 4 times in that time.
- Genre
- Action, Adventure, Indie, Simulation
- Released
- September 21, 2017
- Developer
- Suspicious Developments
- Type
- DLC / add-on
Price history
Steam prices in Europe, in euros: the history is recorded on Steam Spain.
Screenshots
About Heat Signature: Edition Upgrade
Upgrade to the Supporter's Edition and play through Heat Signature's development with 8 early prototypes, watch us do the same as we talk you through why it changed so much in 9 developer commentary videos, and own the full soundtrack in MP3 format.
