IMHO.

Games like Horizon Sandbox

If Horizon Sandbox is your kind of game, the closest matches are 30 Days On Ship: Castaway – The First Days, Hijinks High and Counterweight — picked from the ranked list below. 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.

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About Horizon Sandbox: Horizon Sandbox is a multiplayer physics sandbox. Bolt a thruster to a pallet and call it a plane, send your friend to the stratosphere, build anything, the only limit is your imagination!

ActionIndieSimulationCasualWindows · macOS · Linuxby Horizon Software
Horizon Sandbox — Steam game cover

Players who liked Horizon Sandbox also play

Steam players who put hours into Horizon Sandbox 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. 30 Days On Ship: Castaway – The First Days

    WHY THIS

    Top pick for Horizon Sandbox fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Horizon Sandbox.

    Take on the role of a castaway on a wrecked container ship. Survive for 3 days, battle storms, hunt animals, build shelter, and maintain your hunger and thirst, attempting to endure isolation and pirates in the middle of the Pacific. Can you stay alive?

    2026ActionIndieAdventureFreeSteam ↗
  2. Hijinks High

    WHY THIS

    Second-strongest match for Horizon Sandbox fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Horizon Sandbox.

    Hijinks High turns an average school day into a disaster with up to five friends. Pull off ridiculous classroom objectives, hold off the faculty with your own bodily fluids, and make the bus before the janitor drags you to detention. Then go home to the Cul-De-Sack and do it again tomorrow.

    ActionIndieCasualSteam ↗
  3. Counterweight

    WHY THIS

    Third-strongest match for Horizon Sandbox fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Horizon Sandbox.

    A social deduction tower-builder for 3–8 players. Stack blocks, raise the tower, and figure out which of your friends is placing them badly on purpose. Grab chaotic items, vote people out, and forge the Saboteur Detector before every block hits the ground.

    2026ActionIndieSteam ↗
  4. Respawn | 2022

    WHY THIS

    Ranked #4 for Horizon Sandbox fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Horizon Sandbox.

    Come join us at Respawn where you can play with friends, make friends, create whole worlds, become a content creator, become an artist and so much more all at Respawn!

    ActionSportsIndieFreeSteam ↗
  5. Bull Simulator

    WHY THIS

    Ranked #5 for Horizon Sandbox fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Horizon Sandbox.

    Become a rampaging bull. Charge through towns, chase panicking crowds, headbutt people into the air, smash obstacles, and cause as much chaos as possible.

    ActionIndieAdventureSteam ↗
  6. Cat Chaos

    WHY THIS

    Ranked #6 for Horizon Sandbox fans by collaborative filtering across millions of Steam libraries. Shares Action and Simulation with Horizon Sandbox.

    Cat Chaos is a physics destruction simulator where you're a mischievous house cat destroying everything in sight. Topple items off the tables, whirlwind-spin through shelves, demolish furniture, upgrade your spin, and watch the damage bill skyrocket. Then take a good nap while your human crumbles.

    2026ActionSimulationCasual7.99 USDDeck VerifiedSteam ↗
  7. Vape Store Miami

    WHY THIS

    Ranked #7 for Horizon Sandbox fans by collaborative filtering across millions of Steam libraries. Shares Action and Simulation with Horizon Sandbox.

    Run your own retro Miami vape shop in this 1-4 player co-op simulator. Stock shelves, serve customers, craft e-liquids, handle phone and online orders, grow your reputation, and expand the business.

    2026ActionSimulationCasual14.99 USDSteam ↗
  8. FROG IN THE HOLE!

    WHY THIS

    Ranked #8 for Horizon Sandbox fans by collaborative filtering across millions of Steam libraries. Shares Action and Simulation with Horizon Sandbox.

    Earn a $1,000,000,000 payout by sacrificing frogs to the hole. In this incremental sandbox, you'll build physics-based factories, to scale from manual tossing to managing a chaotic swarm. Sweep, magnetize, master the skill tree and chain combos. What happens to the sacrifices? BECOME WORTHY.

    ActionStrategyAdventureSteam ↗

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 and Casual with Horizon Sandbox.

    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. Shares Action with Horizon Sandbox.

    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. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Horizon Sandbox.

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

    2018ActionIndieFree To PlayFreeSteam ↗
  4. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Horizon Sandbox.

    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 ↗
  5. The Murder of Sonic the Hedgehog

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Horizon Sandbox.

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

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

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Horizon Sandbox.

    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 ↗
  7. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Horizon Sandbox.

    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 ↗
  8. Our Life: Beginnings & Always

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Casual with Horizon Sandbox.

    A twenty-dollar bill, four summers, fifteen years, and a one of a kind life. Create an experience that’s all your own in this near-fully customizable visual novel where you grow from childhood to adulthood with the lonely boy next door.

    2020IndieFree To PlayCasualFreeSteam ↗

Frequently asked about Horizon Sandbox

Does Horizon Sandbox have multiplayer or co-op?
Yes — Horizon Sandbox supports multi-player play according to its Steam store listing (Multi-player).
What games are most similar to Horizon Sandbox?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Horizon Sandbox are 30 Days On Ship: Castaway – The First Days, Hijinks High, Counterweight.
Who developed Horizon Sandbox?
Horizon Sandbox was developed by Horizon Software and published by Horizon Software, Reuben Smy.

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 Horizon Sandbox.

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