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Chip Defense

A tower defense game with a microprocessor theme
New in version 1.55
New features:
- Italian translation added

Bug fixes:
none

Miscellaneous:
- build environment updated, API modernisations

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.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 1.55 (55) suggested Added on Oct 30, 2025

    This version requires Android 5.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • de.chadenas.cpudefense.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 13 MiB PGP Signature | Build Log

  • New in version 1.54
    New features:
    - Explanatory text added to level 98. Fixes issue #214.

    Bug fixes:
    - Selling chips created by von Neumann could yield absurdly high amounts of information. These chips now sell only for 8 bits max. Fixes issue #211.
    - Chips created by von Neumann are now limited to level 10. Fixes issue #207.

  • Version 1.54 (54) - Added on Apr 09, 2025

    This version requires Android 5.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    No permissions

    Download APK 12 MiB PGP Signature | Build Log

  • New in version 1.53
    New Features:
    - Added a “really fast forward” button (must be enabled in the settings)

    Bug fixes:
    - level number was not shown in hex when failing a level

    Miscellaneous:
    - Made “fast forward” mode slightly slower
    - New "did you know" entry

  • Version 1.53 (53) - Added on Mar 16, 2025

    This version requires Android 5.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    No permissions

    Download APK 12 MiB PGP Signature | Build Log