Download Hub
Safe download information with verification guidance
How Downloads Are Handled Safely
This site provides download information for classic freeware space visualization tools. Rather than hosting executable files directly, we provide comprehensive verification details including checksums, availability status, and safety guidance.
This approach ensures transparency and allows users to verify file integrity regardless of download source. Always check file hashes before running any executable software.
Available Tools
| Tool Name | File Name | Status | Actions |
|---|---|---|---|
| Earth3D |
earth3d.exe
|
Information Available | Details |
| Moon3D |
moon3d.exe
|
Information Available | Details |
| Mars3D |
mars3d.exe
|
Information Available | Details |
| Jupiter3D |
jupiter3d.exe
|
Information Available | Details |
| Saturn3D |
saturn3d.exe
|
Information Available | Details |
| Galaxy3D |
galaxy3d.exe
|
Information Available | Details |
| FireMagic |
firemagic.exe
|
Information Available | Details |
| FireStorm |
firestorm.exe
|
Information Available | Details |
Download Safety
Protecting your system requires understanding basic verification practices. Follow these guidelines when downloading any software:
Verify Checksums
Always compare file checksums (SHA-256 or MD5) against published values. Mismatched checksums indicate file corruption or tampering.
Scan Files
Run downloaded files through up-to-date antivirus software before execution. While original versions are safe, mirrors may be compromised.
Trusted Sources
Download only from reputable archives and verified mirrors. Avoid third-party sites that bundle additional software or require payment.
Monitor Behavior
Watch for unexpected network activity or system changes after installation. Legitimate freeware doesn't require internet connectivity or system modifications.
What Checksums Are
A checksum (or hash) is a unique fingerprint for a file. It's calculated using mathematical algorithms that produce a specific value for specific file content. Even a single byte change produces a completely different checksum.
Why Verification Matters
- Integrity: Confirms the file wasn't corrupted during download
- Authenticity: Verifies the file hasn't been modified or tampered with
- Security: Detects malware injection or malicious repackaging
How to Verify Checksums
Download the File
Save the executable file to a location you can remember
Calculate the Hash
Use built-in tools or utilities to calculate the file's checksum:
Windows PowerShell:
Get-FileHash filename.exe -Algorithm SHA256
Windows CMD:
certutil -hashfile filename.exe SHA256
Compare Values
Match the calculated hash against the published value on the download information page. They must match exactly.
Proceed or Discard
If checksums match, proceed with installation. If they don't match, delete the file and try downloading again from a verified source.
Avoiding Repackaged Installers
Be cautious of "repackaged" or "bundled" installers that combine original software with additional programs. Warning signs include:
- File size significantly different from documented size
- Installer offers additional software, toolbars, or browser extensions
- Checksum doesn't match published values
- Download requires payment or registration (original versions are free)
- Site uses aggressive advertising or misleading download buttons
Important: Original freeware versions are small, standalone executables with no bundled software. Installers should never prompt for additional downloads or system changes beyond the application itself.
How to Get the Original Software
For verified download sources and current availability information, see individual tool pages linked in the table above. Each page provides:
- Current availability status
- Published checksums for verification
- File size and version information
- Alternative contact information if direct downloads are unavailable
If you have questions about software availability or need verification assistance, use the contact form.