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Huygens Principle is free to play on Steam! You can also buy it from 2 stores — keyshops from $0.56, official stores from $0.00. Compare all offers on XD.deals.

Release: 13 Dec 2021
Cat In A Jar Games
Cat In A Jar Games
Action
Steam:
Very Positive (15)
Buy in Official Store:
Free
Buy in Keyshops:
-8%
$0.56
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
Huygens Principle
Windows
+1
6w ago
DRM:
Steam
Steam
Free
Historical Low Deal
Historical low
Shop now

Keyshops (1)

DRM:
Steam
Steam
Kinguin
Huygens Principle Steam CD Key
Windows
+1
4w ago
DRM:
Steam
Kinguin
$0.61 $0.56
-8%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Shop now

About Huygens Principle

Huygens Principle
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Huygens Principle
Huygens Principle
Huygens Principle
Huygens Principle
Huygens Principle
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Huygens Principle
Huygens Principle - about the game
In this 2D top-down indie action shooter, players take on the form of each defeated enemy while chasing revenge across space, time, and hell. Fast-paced gameplay demands constant shooting paired with split-second choices on the next target and transformation. Unique chapters shift styles and deliver varied challenges like slow-motion sequences, power-free runs, and time-based movement. The game packs 169 levels across 13 chapters, all unlocked after the tutorial for flexible play in any order along a chronological timeline. Hardcore players thrive on these relentless decisions and diverse gameplay types that test precision under pressure.

Huygens Principle is a 2D top-down shooter where you become the enemy that you killed.

All you want is revenge. And you are going through space, time and hell for this.
Features
  • Fast-paced and hardcore gameplay where you must not only shoot but make decisions in every moment. Who will be next? Who am I going to become?
  • Neat synthwave soundtrack with 16 tracks from ALEX, CYBERCORPSE, Dupre, EMMETT BROWN, Reno and Wice.
  • 169 levels in 13 chapters. Each chapter takes place in a unique location with its own style and music. When you complete the first tutorial chapter all chapters are unlocked. The chapter can be selected on chronological timeline at the bottom of "Play" screen. You can play chapters in any order but it's recommended to follow numerical one.
  • Different types of gameplay: slow-mo, no powers and chapter where time moves when you move.
Action Indie Single-player
Interface:
English

Age rating

Unavailable
Steam:
Very Positive (15)

System requirements

Minimum:

  • Processor: 2 GHz
  • Memory: 4 GB RAM
  • Storage: 150 MB available space

Recommended:

  • Processor: 2 GHz
  • Memory: 4 GB RAM
  • Storage: 150 MB available space

Huygens Principle price history

See all
Historical low
Price history from official stores
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Currently lowest: - -
Price history from keyshops
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Currently lowest: - -
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FAQ

8 questions

Before you start looking for a cheap Huygens Principle key, check the essentials. Developed by Cat In A Jar Games. Published by Cat In A Jar Games. PC released date: 13 Dec 2021. Genres: Action, Indie. Categories: Single-player.

Q

Where to buy a cheap Huygens Principle Steam key?

Huygens Principle is free to play! Download it on Steam and start playing instantly.

Huygens Principle is completely free on Steam. No purchase needed - just download and play. If you are looking for premium DLC or in-game items, check the offers table above.

Our price tracker covers both official retailers and key marketplaces, so you can find Huygens Principle on sale even outside seasonal promotions. We currently detect 2 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Huygens Principle is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Huygens Principle has an official page on the Steam Store. You can also buy a Huygens Principle Steam key from third-party sellers. Our price comparison currently includes 2 offers with Steam DRM. Pick one to ensure your Huygens Principle download happens on Valve's platform.

Yes, with minor tweaks. Huygens Principle is Steam Deck Playable - it works after small adjustments like selecting a Proton version or using the touchscreen for tiny launcher text. You can play Huygens Principle on Steam Deck.

Huygens Principle does not appear to be available on PC Game Pass, EA Play, Ubisoft+ or any other PC subscription service at this time. Your only option is purchasing the game - use XD.deals to find the best price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Huygens Principle deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for Huygens Principle

1 Steam Steam Official
$0.00
2 Kinguin Kinguin Keyshop
-8% $0.56

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