NULL Alchemy
Combine elements. Discover a world. Then break its rules. NULL Alchemy is a free online game with no signup or download required. Explore 150 everyday discoveries, 30 experiments beyond science and 36 wonderfully impossible creations.
- Developer
- SlopNest Originals
- Version
- Early-access design preview
- Platforms
- Browser · Desktop, mobile, tablet
- Controls
- Mouse, touch or keyboard
- Progress
- Saved on this device
- Price
- Free to play
How to play NULL Alchemy
You begin with Water, Fire, Earth and Air. Choose two elements from your collection, then press Combine elements. You can also drag elements into the two slots. A successful combination reveals a new element and adds it to your collection.
- Start small: Water and Fire make Steam. Fire and Earth make Lava.
- Reuse what you find: Every discovered element can be combined again. Nothing gets consumed.
- Try doubles: An element can fill both slots. Water and Water make Sea.
- Follow an idea: Think about materials, nature and inventions. The stranger discoveries come later.
From nature to the impossible
The collection moves through four chapters: Origin, Life & Civilisation, Fringe Science and Reality Break. Build up familiar materials and living things before exploring time, consciousness and cosmic oddities. The late-game combinations follow their own logic, even when the result makes no sense at all.
Stuck on a combination?
A hint reveals the ingredients for an undiscovered recipe that you can already make. In this preview, the extra-hint video flow is simulated. The intended full game offers optional rewarded videos without interrupting your experiments.
For a spoiler-light introduction, read the NULL Alchemy beginner’s guide. If you want exact starter combinations, use the starter recipe list.
Controls
- Desktop: Click or drag elements, then combine.
- Mobile: Tap the two ingredients and the combine button.
- Keyboard: Tab between controls; Enter or Space activates buttons.
- Sound: Optional. Use the sound control inside the game.
Frequently asked questions
Is NULL Alchemy free?
Yes. All 216 elements are available through normal play. There is no purchase required to unlock the collection.
Does my progress save?
Discoveries are stored in this browser on this device. Clearing browser storage removes the saved collection. Cloud synchronisation is not yet included.
Does the order of the elements matter?
No. Water + Fire and Fire + Water produce the same result.
Can I combine an element with itself?
Yes. Select the same element twice. Some discoveries require identical ingredients.
Are the results generated by AI while I play?
No. This version uses a fixed set of 212 recipes, so discoveries are consistent and all elements can be reached.