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Rasterfall playtest
by Ota Mato
A falling-sand survival crafting game where every pixel is physically simulated and chemically reactive. Explore the world using a wide variety of materials, synthesize new substances, and build automated production lines. Multiplayer supported.
Anyone with a Steam account can join, and it's free.
- Access
- Instant
- On playtest since
- Nov 9, 2026
- Planned release
- 2027
- Developer
- Ota Mato
- Platforms
- Windows
- Players
- Co-op, Multiplayer, Online co-op, Single-player
- Languages
- English, French, German, Italian and 7 more
How to join the Rasterfall playtest
- Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
- Use the Rasterfall playtest signup there. You're in straight away, with nothing to pay.
- The playtest shows up in your Steam library, ready to install and play.
New to playtests? How Steam playtests work
How AI is used
We use generative AI for coding, translation, and object placement.
The developer's own words, from Steam.
About Rasterfall
Rasterfall is an open-world survival crafting game featuring pixel-level physics and chemistry. Chop a tree and it falls; bring fire near it and it burns; pour water on it and steam rises as the flames go out.
Online co-op for up to 4 players is also supported, with every pixel synchronized across players.
A variety of ores lie beneath the surface, but the depths are full of danger too. Proceed carefully, placing torches and ladders as you go. Craft better tools from the ore you find to explore even deeper.
By making pixels react with one another, you can smelt ore, mix gunpowder, and synthesize all sorts of other materials. Combine pipes and electrical circuits to automate your processes.
You can also build moving machines by connecting objects with springs and hinges.
Streaming Guidelines
You're welcome to share screenshots and post or stream gameplay videos of this game.
When doing so, please include the game title (the hashtag #Rasterfall is fine too).
Both individuals and companies are free to monetize such content through the platform's built-in features.
From the game's Steam page.
