IMHO.

Games like Theta and Paralldox on Worldlines

If Theta and Paralldox on Worldlines is your kind of game, the closest matches are Snakeloop, Block Buster Billy and Perplexicube — picked from the ranked list below. Reviewers single out its atmospheric, challenging and contemplative. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

Get personalized picks →

About Theta and Paralldox on Worldlines: A lovely logical puzzle game about the many-worlds interpretation and quantum mechanics.

2026Indie9.99 USDDeck PlayableWindowsby XXela
Theta and Paralldox on Worldlines — Steam game cover
Players highlight
Continuous discovery of new rule interactionsEach world builds on existing rules in novel waysGradual discovery of hidden mechanicsAtmosphericChallengingContemplative

Players who liked Theta and Paralldox on Worldlines also play

Steam players who put hours into Theta and Paralldox on Worldlines also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Snakeloop

    WHY THIS

    Top pick for Theta and Paralldox on Worldlines fans by collaborative filtering across millions of Steam libraries. Shares Indie with Theta and Paralldox on Worldlines.

    Snakeloop is a challenging puzzle game based on a simple idea: What if you took classic Snake but inverted the goal and made it so you have to form a loop by eating your own tail.

    2025StrategyIndieCasual4.99 USDSteam ↗
  2. Block Buster Billy

    WHY THIS

    Shares an intense mood with Theta and Paralldox on Worldlines.

    Second-strongest match for Theta and Paralldox on Worldlines fans by collaborative filtering across millions of Steam libraries. Shares Indie with Theta and Paralldox on Worldlines.

    An alien family had a picnic on Billy's island. They had to leave in a hurry, causing Junior to forget his cubes. Can you help Billy figure out the mind-boggling alien puzzles?

    2023StrategyIndieCasual9.99 USDDeck VerifiedSteam ↗
  3. Perplexicube

    WHY THIS

    Third-strongest match for Theta and Paralldox on Worldlines fans by collaborative filtering across millions of Steam libraries. Shares Indie with Theta and Paralldox on Worldlines.

    Perplexicube is a challenging isometric puzzler where you must work together with your past and future selves. You'll have to think ahead as you create loops backwards in time to set your futures selves up for success.

    IndieCasualSteam ↗
  4. Sandy's Great Escape

    WHY THIS

    Shares meta progression, puzzle solving and atmospheric with Theta and Paralldox on Worldlines.

    Ranked #4 for Theta and Paralldox on Worldlines fans by collaborative filtering across millions of Steam libraries. Shares Indie with Theta and Paralldox on Worldlines.

    A crabby twist on the sokoban (box-pushing) genre, where you use deaths to create shells and solve puzzles.

    2023IndieCasual9.99 USDDeck PlayableSteam ↗
  5. A Simple Square

    WHY THIS

    Ranked #5 for Theta and Paralldox on Worldlines fans by collaborative filtering across millions of Steam libraries. Shares Indie with Theta and Paralldox on Worldlines.

    A Simple Square is a minimalist puzzle game where every move changes the level. Slide in straight lines, erase the tiles behind you, plan your path, and reach the exit without trapping yourself.

    2026StrategyIndieCasualSteam ↗
  6. Loophole

    WHY THIS

    Shares trial and error, time manipulation and atmospheric with Theta and Paralldox on Worldlines.

    Ranked #6 for Theta and Paralldox on Worldlines fans by collaborative filtering across millions of Steam libraries. Shares Indie with Theta and Paralldox on Worldlines.

    A time-bending puzzle game about working with - and against - your past selves. Subvert the rules of time travel, dodge paradoxes, and find a way to escape the loop.

    2025Indie9.99 USDDeck VerifiedSteam ↗
  7. A Good Snowman Is Hard To Build

    WHY THIS

    Shares a contemplative mood with Theta and Paralldox on Worldlines.

    Ranked #7 for Theta and Paralldox on Worldlines fans by collaborative filtering across millions of Steam libraries. Shares Indie with Theta and Paralldox on Worldlines.

    An adorable puzzle game about being a monster and making snowmen.

    2015Indie14.99 USDDeck VerifiedSteam ↗
  8. Patrick's Parabox

    WHY THIS

    Shares procedural generation, puzzle solving and a challenging mood with Theta and Paralldox on Worldlines.

    Ranked #8 for Theta and Paralldox on Worldlines fans by collaborative filtering across millions of Steam libraries. Shares Indie with Theta and Paralldox on Worldlines.

    A mind-bending recursive puzzle game about boxes within boxes within boxes within boxes. Learn to use infinity to your advantage as you explore a deep and elegant system.

    2022StrategyIndieCasual19.99 USDDeck PlayableSteam ↗

Reviewers mention these as similar to Theta and Paralldox on Worldlines

Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.

  1. Stephen's Sausage Roll

    WHY THIS

    Shares an atmospheric mood with Theta and Paralldox on Worldlines.

    Reviewers of Theta and Paralldox on Worldlines cross-mention this title as a similar play. Shares Indie with Theta and Paralldox on Worldlines.

    A simple 3d puzzle game.

    2016Indie29.99 USDDeck PlayableSteam ↗
  2. Maxwell's puzzling demon

    WHY THIS

    Shares meta progression, puzzle and an atmospheric mood with Theta and Paralldox on Worldlines.

    Reviewers of Theta and Paralldox on Worldlines cross-mention this title as a similar play. Shares Indie with Theta and Paralldox on Worldlines.

    "Thermodynamic" puzzle where Maxwell's demon does work of block-pushing. Deal those hot blocks with cold blocks so that the demon doesn't get burnt.

    2024IndieCasual14.99 USDDeck PlayableSteam ↗
  3. Baba Is You

    WHY THIS

    Shares a hypnotic mood with Theta and Paralldox on Worldlines.

    Reviewers of Theta and Paralldox on Worldlines cross-mention this title as a similar play. Shares Indie with Theta and Paralldox on Worldlines.

    Baba Is You is a puzzle game where the rules you have to follow are present as blocks you can interact with. By manipulating them, you can change how the game works, repurpose things you find in the levels and cause surprising interactions!

    2019Indie14.99 USDDeck VerifiedSteam ↗
  4. Patrick's Parabox

    WHY THIS

    Shares procedural generation, puzzle solving and a challenging mood with Theta and Paralldox on Worldlines.

    Reviewers of Theta and Paralldox on Worldlines cross-mention this title as a similar play. Shares Indie with Theta and Paralldox on Worldlines.

    A mind-bending recursive puzzle game about boxes within boxes within boxes within boxes. Learn to use infinity to your advantage as you explore a deep and elegant system.

    2022StrategyIndieCasual19.99 USDDeck PlayableSteam ↗
  5. Void Stranger

    WHY THIS

    Reviewers of Theta and Paralldox on Worldlines cross-mention this title as a similar play. Shares Indie with Theta and Paralldox on Worldlines.

    Place your faith and embrace the Void.

    2023IndieAdventure11.99 USDDeck VerifiedSteam ↗
  6. Drifting with Maxwell Cat: The Game

    WHY THIS

    Reviewers of Theta and Paralldox on Worldlines cross-mention this title as a similar play.

    "Drifting with Maxwell Cat The Game" is a skateboarding game featuring meme characters navigating obstacle-filled levels. Customize your skateboard and pull off stunts to earn points. With vibrant art and intuitive controls, it's a fun arcade game for all skill levels.

    2023ActionSportsCasualDeck PlayableSteam ↗
  7. Star Knight: Order of the Vortex

    WHY THIS

    Reviewers of Theta and Paralldox on Worldlines cross-mention this title as a similar play. Shares Indie with Theta and Paralldox on Worldlines.

    Star Knight: Order of the Vortex is a rogue-lite, bullet-hell, shoot-em-up with the ability to create unique builds and synergies as you test your skills in action-packed gameplay. Choose your crew, upgrade your ship, and explore the unknown depths of the Vortex.

    2024ActionIndieEarly Access4.99 USDDeck PlayableSteam ↗
  8. Order of the Sinking Star

    WHY THIS

    Reviewers of Theta and Paralldox on Worldlines cross-mention this title as a similar play.

    From director Jonathan Blow (Braid, The Witness), Order of the Sinking Star is a narrative adventure set in a realm of magic and enigma. Solve over 1000 interconnected, hand-crafted puzzles, discover unique playable heroes, master evolving gameplay mechanics, and decipher a grand mystery.

    AdventureSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Theta and Paralldox on Worldlines at current Steam store prices.

  1. Garry's Mod

    WHY THIS

    Priced ~50% under Theta and Paralldox on Worldlines on Steam right now. Shares Indie with Theta and Paralldox on Worldlines.

    Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.

    2006IndieSimulationCasual4.99 USDDeck PlayableSteam ↗
  2. Vampire Survivors

    WHY THIS

    Priced ~50% under Theta and Paralldox on Worldlines on Steam right now. Shares Indie with Theta and Paralldox on Worldlines.

    Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!

    2022ActionIndieRPG4.99 USDDeck VerifiedSteam ↗
  3. Cookie Clicker

    WHY THIS

    Priced ~50% under Theta and Paralldox on Worldlines on Steam right now. Shares Indie with Theta and Paralldox on Worldlines.

    An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.

    2021StrategyIndieSimulation4.99 USDDeck PlayableSteam ↗
  4. WEBFISHING

    WHY THIS

    Priced ~50% under Theta and Paralldox on Worldlines on Steam right now. Shares Indie with Theta and Paralldox on Worldlines.

    WEBFISHING a multiplayer chatroom-focused fishing game! Relax and fish (on the web!)

    2024IndieMassively MultiplayerCasual4.99 USDSteam ↗
  5. POSTAL 2

    WHY THIS

    Priced ~90% under Theta and Paralldox on Worldlines on Steam right now. Shares Indie with Theta and Paralldox on Worldlines.

    Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  6. Buckshot Roulette

    WHY THIS

    Priced ~70% under Theta and Paralldox on Worldlines on Steam right now. Shares Indie with Theta and Paralldox on Worldlines.

    Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!

    2024ActionIndieSimulation2.99 USDDeck PlayableSteam ↗
  7. Brotato

    WHY THIS

    Priced ~50% under Theta and Paralldox on Worldlines on Steam right now. Shares Indie with Theta and Paralldox on Worldlines.

    Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.

    2023ActionIndieRPG4.99 USDDeck VerifiedSteam ↗
  8. Your Only Move Is HUSTLE

    WHY THIS

    Priced ~50% under Theta and Paralldox on Worldlines on Steam right now. Shares Indie with Theta and Paralldox on Worldlines.

    Master your technique, execute flashy combos, and outsmart opponents across the world, frame-by-frame. Slow down the clock to fine-tune your fighting style in this innovative, turn-based combat simulator. Pulverize your friends and choreograph spectacular fight scenes. No training mode required.

    2023ActionStrategyIndie4.99 USDDeck PlayableSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Theta and Paralldox on Worldlines.

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Life is Strange - Episode 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.

    2015ActionAdventureFreeDeck PlayableSteam ↗
  3. Helltaker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Theta and Paralldox on Worldlines.

    Helltaker is a short game about sharply dressed demon girls.

    2020IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  4. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Theta and Paralldox on Worldlines.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  5. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Theta and Paralldox on Worldlines.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  6. The Murder of Sonic the Hedgehog

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Theta and Paralldox on Worldlines.

    Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  7. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Theta and Paralldox on Worldlines.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  8. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗

Plays great on Steam Deck

Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

  1. Block Buster Billy

    WHY THIS

    Shares an intense mood with Theta and Paralldox on Worldlines.

    Deck Verified — runs on Steam Deck out of the box. Shares Indie with Theta and Paralldox on Worldlines.

    An alien family had a picnic on Billy's island. They had to leave in a hurry, causing Junior to forget his cubes. Can you help Billy figure out the mind-boggling alien puzzles?

    2023StrategyIndieCasual9.99 USDDeck VerifiedSteam ↗
  2. Loophole

    WHY THIS

    Shares trial and error, time manipulation and atmospheric with Theta and Paralldox on Worldlines.

    Deck Verified — runs on Steam Deck out of the box. Shares Indie with Theta and Paralldox on Worldlines.

    A time-bending puzzle game about working with - and against - your past selves. Subvert the rules of time travel, dodge paradoxes, and find a way to escape the loop.

    2025Indie9.99 USDDeck VerifiedSteam ↗
  3. A Good Snowman Is Hard To Build

    WHY THIS

    Shares a contemplative mood with Theta and Paralldox on Worldlines.

    Deck Verified — runs on Steam Deck out of the box. Shares Indie with Theta and Paralldox on Worldlines.

    An adorable puzzle game about being a monster and making snowmen.

    2015Indie14.99 USDDeck VerifiedSteam ↗

Frequently asked about Theta and Paralldox on Worldlines

Does Theta and Paralldox on Worldlines run on Steam Deck?
Theta and Paralldox on Worldlines is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
How much does Theta and Paralldox on Worldlines cost?
Theta and Paralldox on Worldlines is listed on Steam at 9.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Theta and Paralldox on Worldlines?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Theta and Paralldox on Worldlines are Snakeloop, Block Buster Billy, Perplexicube.
Who developed Theta and Paralldox on Worldlines?
Theta and Paralldox on Worldlines was developed by XXela and published by XXela, Delta Theta.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Theta and Paralldox on Worldlines.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.

35 Games Like Theta and Paralldox on Worldlines (2026) · imho.run