App Downloads

Just download and play.  Hassle free.  Or play in your browser with no download at all, on the Online Apps page.

  • BAMBOO

    Play against the computer at six levels, from random to unbeatable, or against a friend on one phone.  Hexagonal boards from 4 to 8 cells per side, confirm step, undo, hints, and the rules with diagrams.  No permissions, no ads, no internet connection needed.

    Android.  Version 1.3, 47 KB, September 2026.

  • BLACK NARROWS

    Play against the computer at six levels, from random to unbeatable, or against a friend on one phone.  Boards from 5x4 to 10x9 points, confirm step, undo, hints, a copyable game record, and the rules with diagrams.  No permissions, no ads, no internet connection needed.

    Android.  Version 1.6, 125 KB, September 2026.

  • COLORFIELD

    Play against the computer at six levels, from random to unbeatable, or against a friend on one phone.  2D grids from 4x4 to 12x12 dots and 3D boards from 4x4x1 to 8x8x1, pie rule, confirm step, undo, hints, and the rules with diagrams.  No permissions, no ads, no internet connection needed.

    Android.  Version 1.2, 112 KB, September 2026.

  • DODO

    Play against the computer at six levels, from random to unbeatable, or against a friend on one phone.  Confirm step, undo, hints, and the rules with diagrams.  No permissions, no ads, no internet connection needed.

    Android.  Version 1.1, 46 KB, September 2026.

  • OUST

    Play against the computer at six levels, from random to unbeatable, or against a friend on one phone.  Hexagonal boards of 6, 7 or 8 cells per side, confirm step, undo, hints, a copyable game record, and the rules with diagrams.  No permissions, no ads, no internet connection needed.

    Android.  Version 1.7, 76 KB, September 2026.

  • ROOM AND PILLAR

    Play against the computer at six levels, from random to unbeatable, or against a friend on one phone.  Board sizes 4x5 to 8x9, pie rule, confirm step, undo, hints, and the rules with diagrams.  No permissions, no ads, no internet connection needed.

    Android.  Version 1.25, 169 KB, September 2026.

To install

Download the file on your Android phone and open it.  The first time, Android asks for permission to install apps from your browser or file manager.  Allow it, then tap Install.  Google Play Protect may offer to scan the app first, which is fine.

Updating Bamboo, Colorfield, Oust or Room and Pillar

The September 29 versions (Bamboo 1.3, Colorfield 1.2, Oust 1.7, Room and Pillar 1.25) are signed with new keys, so Android will not install them over an older version.  Uninstall the old app first, then install the new one.  Only the menu settings are lost.