
Screenshots

Watch trailer on Steam ↗H+H=H2
Feishiko · Published by Feishiko
Positive — 94% positive (18 reviews) · 8 achievements
Last updated 29 Sept 2026
Sokoban-like, Fake-chemistry, Solitaire
£3.39
Lowest price we've ever recorded
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Price history
Indie · 2025 · More under £5 games
Navigate through puzzles that blend Sokoban-style movement with unique chemical reactions in H+H=H2, an indie game from Feishiko released in 2025.
About this game
H+H=H2 is a sokoban-like game that contains pseudo chemistry

Cute Pixel Style
Chemistry based fake chemistry mechanics
60 Hand-craft Levels
Solitaire

Basic mechanics requires you to collision each Hydrogen atoms makes no Hydrogen atoms exists in the level
H + H = H2
H + H2 = H3
H3 couldn't be pushed
As you process this game, there will be more mechanics: Like He atom could push everything including H3(?) atom etc.

A unique solitaire inspired by Zachtronics's Fortune’s Foundation
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 or above
- Processor: Intel Core 2 Duo E8200, AMD Athlon XE BE-2300
- Memory: 2 GB RAM
- Graphics: Intel HD Graphics 2500 (Ivy Bridge), AMD Radeon R5 Graphics (Kaveri)
- Storage: 200 MB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10 or above
- Processor: Intel Core i5-6600K, AMD Ryzen 5 1600
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce GTX 650 (Kepler), AMD Radeon HD 7750 (GCN 1.0)
- Storage: 200 MB available space
Supported Languages
Latest news
Patch NotesOfficial
Added Japanese and Traditional Chinese Localization
We supported two new languages at this version! We hope in this update, more players could enjoy H+H=H2.Read full article on Community Announcements (Feishiko)Patch NotesOfficial
2025 Feb. 23 Update
Fixed player's sprite sometimes doesn't display correctly Fixed level "Chain" and "Construct" to delete empty spacesRead full article on Community Announcements (Feishiko)Patch NotesOfficial
2025 Feb. 18 Update
Fixed the depth drawing issue after an undo restart Fixed achievements don't display in-game issue Fixed solitaire card layer display issue Fixed settings keyboard and mouse not sync Fixed last level just quit play credit Fixed after quit the level, selector's preview not correctRead full article on Community Announcements (Feishiko)






