Sea Cogs: Idle Base Building
v1.9.0c · 36.9 MB · code 6410803
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File information
UpdatedOct 8, 2025
PublishedNov 24, 2019
Packageair.com.airapport.A20000.cogs.under.sea.nemo.steampunk
Versionv1.9.0c (6410803)
Size36.9 MB
MD53487142f1ca0e0637a6ffdf4605b46b4
Min SDK14
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA15D:11:45:F0:5E:9C:B8:F0:11:C2:6A:B7:68:D1:12:B9:43:31:99:0E
SignerCN=, OU=Catappult, O=Airapport, C=
Total downloads10,000
This version10,000
DeveloperAirapport
Age ratingEveryone
What's new in v1.9.0c
Game optimized for Android 12
Security scan
TRUSTED
- Developer signature verified 2020-10-06
- Scanned for malware 2020-11-01 12:56:50
- Signature SHA1 5D:11:45:F0:5E:9C:B8:F0:11:C2:6A:B7:68:D1:12:B9:43:31:99:0E
- File MD5 3487142f1ca0e0637a6ffdf4605b46b4
How to install Sea Cogs: Idle Base Building v1.9.0c on Android API 14+
Takes about 2 minutes. You'll need roughly 36.9 MB of free storage.
- Grab air.com.airapport.A20000.cogs.under.sea.nemo.steampunk_6410803.apk — hit the Download button above (36.9 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 3487142f1ca0e063…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find air.com.airapport.A20000.cogs.under.sea.nemo.steampunk_6410803.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=, OU=Catappult, O=Airapport, C=. 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 Sea Cogs: Idle Base Building — tap Open on the install screen, or find the Sea Cogs: Idle Base Building icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for Sea Cogs: Idle Base Building
- "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 API 14 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.