Developer
XXela
Publisher
XXela,Delta Theta
Released
Feb 4, 2026
Price checked
6 hours ago
Tracked since
Oct 8, 2026
Product code
app:3219580

Game

Theta and Paralldox on Worldlines

  • Steam
  • PC

Description

A lovely logical puzzle game about the many-worlds interpretation and quantum mechanics.

  • Theta is a little girl who turns left every time she hits a wall. She is curious about the sinking world and discovers a mysterious place, where she picked up a fork that can split her into multiple copies of herself, and from that moment, the world changes forever.

  • Use the power of splitting to solve puzzles! Split yourself, the universe and something even vaster...

  • The game has 6 main chapters, each revealing at least one hidden truth that already hides within the core mechanics of the game from the beginning. Paralldoxs are under your nose!

  • By experiencing some abstract interpretations of modern physics, you will uncover the creation and operation of parallel worlds and other rules.

  • 240+ handcrafted puzzles, along with meta puzzles and hidden shiny collections that requires power of changing the world.

  • HInt system and Notebook : You can look up the knowledge you've learnt, or think about the essence of current level in Theta's dream.

  • Relaxing Graphics. Sit down and take a rest if you're tired. (Even in darkest places!)

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PC requirements

Minimum

OS
Windows 10/11
Memory
4 GB
Storage
0.2 GB

Recommended

Requires a 64-bit processor and operating system

Best price
$4.70
Russia Russia ₽385
All-time low
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Ratings

Steam reviews Very Positive 97% · 320 reviews Last 30 days: 96% of 33

About the game

Developer
XXela
Publisher
XXela,Delta Theta
Released
February 4, 2026
Official site

Languages 3

LanguageMenusVoiceSubtitles
English
Japanese
Simplified Chinese

Part of bundles 1