H+H=H2 — Steam capsule
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H+H=H2 Free Download

by Feishiko

Windows · Feb 11, 2025

Download Now Data checked on Steam: Oct 20, 2026
Fit check

Is H+H=H2 worth it for you?

We tell you who should skip it, too.

Play it if you…

Good fit
  • Sokoban fans who want fictional chemistry rules
  • Puzzle players who prefer handcrafted levels over open-ended systems
  • Zachtronics-style solitaire enthusiasts seeking atom-pushing mechanics

Skip it if you…

Saves you a refund
  • Players seeking more than 60 handcrafted puzzle levels
  • Players who prefer free-form movement instead of collision-based pushing
  • Players looking for real chemistry rather than fictional rules

Drafted from Steam store data with AI and reviewed by an editor · How we write fit checks · Report an error

Our take on H+H=H2

The atom-combination system gives the game a narrow puzzle focus, trading broad puzzle variety for a ruleset centered on pushing and forming hydrogen compounds. The fixed set of 60 handcrafted levels also favors a defined campaign over an expansive or endlessly generated structure.

What is H+H=H2?

H+H=H2 is a Sokoban-like puzzle game built around fictional chemistry.

Players push hydrogen atoms into each other to create larger forms, following rules such as H + H = H2 and H + H2 = H3. H3 cannot be pushed, while later mechanics introduce helium atoms that can move other pieces, including H3. The game presents these mechanics across 60 handcrafted levels in a pixel-art style. Its structure also draws from solitaire and is inspired by Zachtronics’ Fortune’s Foundation.

How H+H=H2 plays

01Atom Combination Rules
Colliding hydrogen pieces produces forms such as H2 and H3, with H3 becoming immovable.
02Handcrafted Puzzle Set
The game includes 60 designed levels.
03Expanding Mechanics
Later stages add helium pieces that can push other atoms, including H3.
04Solitaire Inspiration
The puzzle structure takes inspiration from Zachtronics’ Fortune’s Foundation.

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Minda ChenWin · Mac · Linux · 2023For:Puzzle players who enjoy combining object-pushing with line-drawing mechanicsSkip if:Players seeking action, combat, or fast movement may bounce off the puzzle-focused gameplay.
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Sokobond

Draknek & FriendsWin · Mac · 2014For:Puzzle players who want chemistry-themed logic challengesSkip if:Players looking for action, combat, or fast-paced gameplay
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So Fart Away

TheBOA.GamesWin · 2025For:Sokoban fans who want a comedy-focused puzzle gameSkip if:Players seeking action-focused gameplay rather than deliberate grid-based puzzle solving
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A Solitaire Mystery

Hempuli OyWin · Mac · Linux · 2025For:Solitaire fans who want multiple rulesets instead of one fixed card gameSkip if:Players who want one consistent solitaire ruleset may hit a wall when the collection shifts between familiar and experimental formats

Picked by overlapping fit notes and genres, not an editorial comparison.

H+H=H2: platforms & release

Is H+H=H2 worth it?

It is worth it if: sokoban fans who want fictional chemistry rules. Skip it if: players seeking more than 60 handcrafted puzzle levels.

Where can I download H+H=H2?

Use the Download Now button on this page: it opens H+H=H2's store page, where you can choose how to get it.

What platforms is H+H=H2 on?

Windows only.

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