Railroad Train Simulator
v3.9.321 · 48 MB · code 3009321
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File information
UpdatedAug 14, 2022
PublishedAug 14, 2022
Packageair.tinytrains
Versionv3.9.321 (3009321)
Size48 MB
MD5085a0fc7f96087285d52e8252f27080d
Min SDK19
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA156:F8:5C:2D:45:84:E4:41:48:C2:FE:FE:47:78:75:D9:02:05:BA:F4
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads100,000
This version100,000
DeveloperKIKO CAT Ltd.
Age ratingEveryone
What's new in v3.9.321
Bug fixes.
Full screen issues fix.
Update to the latest SDKs.
Full screen issues fix.
Update to the latest SDKs.
Security scan
TRUSTED
- Developer signature verified 2022-08-14
- Signature SHA1 56:F8:5C:2D:45:84:E4:41:48:C2:FE:FE:47:78:75:D9:02:05:BA:F4
- File MD5 085a0fc7f96087285d52e8252f27080d
How to install Railroad Train Simulator v3.9.321 on Android 4.4 KitKat+
Takes about 2 minutes. You'll need roughly 48 MB of free storage.
- Grab air.tinytrains_3009321.apk — hit the Download button above (48 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 085a0fc7f9608728…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find air.tinytrains_3009321.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Railroad Train Simulator — tap Open on the install screen, or find the Railroad Train Simulator icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for Railroad Train Simulator
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 4.4 KitKat or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships arm64-v8a native code. Devices with a different CPU will reject it.