We Love It's Guide to…

Theta and Paralldox on Worldlines

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

96%
of 192 reviews
$9.99
Released: Feb 3, 2026  •  Developer: XXela  •  Publishers: XXela…

The Developer Says...

  • 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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Awards and Kudos

Back of the Box Details

Steam Deck

Playable

DLC

None

DRM/EULA Notices

None

Achievements

None

Ratings

None

Demo

None

Metacritic

None

Content Notices

None

Controller Support

Xbox

Reviews

96%

Overwhelmingly Positive

Based on 192 reviews


Individual reviews are not available yet.