

Huygens Principle
Cat In A Jar Games · December 13, 2021 · Action, Shooter, Top-Down Shooter, 2D, Top-Down
Huygens Principle is free to play — no purchase needed. We track it so you know if that ever changes.
Cheapest Huygens Principle keys — keyshops
Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.
Screenshots
Huygens Principle price
Huygens Principle is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.
About Huygens Principle
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.
Huygens Principle — game info
- Platforms
- Windows
- Steam Deck
- Playable
- Player modes
- Single-player
- PC Game Pass
- Not included
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
Huygens Principle is a very badly made 2D retro pixel top down twin stick shooter/brawler with some simple gimmick, your character and abilities change to the thing you just killed. That's all there is to it. It was slapped together with the craptastic Cocos2D engine, giving GameMaker Studio a run for it's money for worst video game engine in the world. The game has you running around shooting/bashing enemies with guns, baseball bats etc, there's no real cohesive or interesting plot or motivation to actually play the game. Think of it as a lame ripoff of Hotline Miami but with even worse graphics and gameplay. A choice was made to use obsolete retro pixel "art" as a substitute for contemporary PC graphics. It's unclear if this is due to lack of budget or talent, regardless, the overall visual quality of the game is extremely low as a result. Resolution is locked and can't be changed, and there's no visual or graphics tweaks, so there's no way to improve the very lazy, mediocre visuals. To make matters worse, the implementation is so clumsy they couldn't manage to work out how to make the game display in full screen, it only runs in a window! The controls can't be cust…3 found this helpful
I like the game, it's fun to play2 found this helpful
A suprisingly good game. My friends had recommended it to me, because they played it a couple years earlier and I wanted to see if it holds up, and it does :)1 found this helpful
1 found this helpful
[h1]Before I played Huygens Principle, I had a small pp, no friends, no gf, depression, and no life. These things havent changed, but the game is pretty good[/h1]1 found this helpful
A fun, fast-paced time-waster reminiscent of Stick Arena or something you'd find on Newgrounds. My friend complained that the window couldn't be resized but there's always fullscreen mode. When I launched the game I think the sound and music were disabled by default which was odd...for a minute I thought the game just had no audio.1 found this helpful
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