Primrose 6.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. Primrose lies within Games, more precisely Arcade. The actual developer of the free software is Jason Rohrer.
The common filenames for the program's installer are PRIMBAR.EXE, PrimRose.exe or Primrose Account Managemen.exe etc. The most popular versions of the tool 6.0 and 1.1. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Primrose's gameplay is deceptively simple: You're given random pairs of colored tiles that you must place on a 7x7 grid. When you surround a group of one color with another color, the surrounded group clears, scoring points. The surrounding tiles flip to the color of the tiles that were cleared. When tiles flip color, chain reactions are possible. Larger groups and longer chain reactions are awarded more points.
You may want to check out more software, such as MachineHell, RoverXPL or Juno Nemesis: Remix Full, which might be related to Primrose.