KAtomic is a fun educational game built around molecular geometry. It employs simplistic two-dimensional looks at different chemical elements.
Publisher’s description
What is katomic?
katomic by KDE e.V. is open-source Windows software in the pc games category. Besides Windows, it is available for Linux.
Installation and requirements
The publisher provides EXE (NSIS) installers for 64-bit Windows. The main installer is 108.4 MB. It can be installed for the current user only, without administrator rights. A silent install is possible with the installer’s documented switches.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
- Updated in the last two months
- Also runs on Linux
Cons
- No native ARM64 build
In short: katomic is an open-source pc game tool for 64-bit PCs. Administrators can deploy it unattended.
Is katomic safe to download?
- The file is served by cdn.kde.org, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
A112574B26BF3922AEC83D383D9A2D498C089A8F5A76C5BD0B4B7002EF6FF9C5· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| masterLatest | October 19, 2026 | 108.4 MB | 64-bit EXE (NSIS)64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id KDE.KAtomic -ekatomic-master-958-windows-cl-msvc2022-x86_64.exe /SRelated guide: How to use winget: install and update apps
Also for other systems
flatpak install flathub org.kde.katomicInformation
- Publisher
- KDE e.V.
- Category
- PC games
- Licence
- GPL-2.0-or-later
- Price
- Free
- Content rating
- All ages
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Other platforms
- Linux
- Version
- master
- Released
- October 19, 2026
- Added to the catalogue
- July 12, 2025
- Versions listed
- 1
- Website
- apps.kde.org
- winget ID
- KDE.KAtomic
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is katomic free?
Yes. katomic is open-source software under the GPL-2.0-or-later licence.
Is katomic safe to download?
The download comes from cdn.kde.org, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install katomic with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can katomic be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does katomic run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use katomic without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to katomic?
OpenTTD, RetroArch, Steam, PPSSPP and Celestia. The alternatives page compares them.
