A tower defense game with a microprocessor theme
About this app
Chip Defense is a casual game for Android devices of the tower defense genre. It centres around a design of electric circuits and logical chips, evoking the good ol' days of 8 bit micro-processors.
The attackers in this game are represented as bits and bytes. To defend the cpu against them, the player builds chips in designated slots. These "towers" deal damage by operations such as subtraction, right shift, bitwise and, etc. As usual in these games, the chips can be upgraded in strength.
The game features "heroes of the information age": persons that had great influence on the development of modern computers. They come with a short biography und provide global bonuses that make the game considerably easier.
Currently, there are more than 25 heroes and heroines. The game comes with 32 predefined levels, but it has also an "endless" mode with randomly generated levels. Supported languages are English, French, and German.
Supported operating system versions: From version 1.58 onwards, Android 6 or later is required. Devices running Android 5 (i.e. more than 10 years old) should use version 1.57.
Licensed under MIT, by ochadenas.
What's New in v1.61
Imported from the F-Droid repository index.
- New features:
- - A faint line simulates a "burnt in" image in the terminal display.
- Bug fixes:
- - Layout errors fixed.
- - In the memory bank view, the topmost line could extend beyond the rectangle.
- - Hero stage restrictions no longer apply to turbo series. Fixes issue #252.
Version history
Jun 25, 2026 · 14 MB · Android API 23–36 · code 61
Imported from the F-Droid repository index.
- New features:
- - A faint line simulates a "burnt in" image in the terminal display.
- Bug fixes:
- - Layout errors fixed.
- - In the memory bank view, the topmost line could extend beyond the rectangle.
- - Hero stage restrictions no longer apply to turbo series. Fixes issue #252.
SHA-256 45b2a26fbc37b43bb447c842ed68c9d10ee5c10ecc74b8d29fa1b2ddf4d2113a
Jun 16, 2026 · 14 MB · Android API 23–36 · code 60
Imported from the F-Droid repository index.
- New features:
- - The Zoom in / Zoom out buttons can be disabled in the Settings dialogue.
- - The “About” dialogue has been replaced by a new “Extras” activity that can be swiped left and right and provides more space for additional elements.
- - A seven-segment display clock has been added to the Extras activity.
- - A “memory bank” visualization has been added to visualize the infomation gained in the game. This is just cosmetic, there is no game funtionality for this. NB: Info gained is registered o
SHA-256 5b3abea3e8fedd998152c21d5744557954496c51cbde8ddd385bebf58c1e95a1
May 11, 2026 · 13.9 MB · Android API 23–36 · code 59
Imported from the F-Droid repository index.
- New features:
- - The view is now scaled using buttons rather than the two-finger pinch gesture.
- - The level selection scrolls automatically to the end of the list.
- Bug fixes:
- - Further adjustments for ‘Edge-to-Edge’ mode
- - Fixed Issue #249 (hopefully)
SHA-256 0cfc9a289ffa784a9e155cb2412548fde53fac7d9525d19fa9d64facfd32a791
Will it run on your device?
78%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be de.chadenas.cpudefense is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 1.60 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Chip Defense first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Chip Defense, and a listing is removed when the evidence for it stops holding up.
Get Chip Defense
Every source we list for de.chadenas.cpudefense is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
45b2a26fbc37b43bb447c842ed68c9d10ee5c10ecc74b8d29fa1b2ddf4d2113a
Signing certificate
16d325320ba0d80f98724000116e72d5d5d4a40ffc3236dd3180aa0a834dd8f9
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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