Their wargames are notable for using small wooden or plastic blocks instead of the more conventional cardboard counters.

Although Quebec 1759 eventually sold over 20,000 copies, the next two titles were not as successful, and the business partners realized there was not much of a market in Canada for board wargames.

Starting in 1975, they switched to more family-oriented games such as Airline (1975), Klondike (1975), Supermoney (1978), Smokers Wild (1978), Foreign Exchange (1978), Maneuver (1979), and Score!

The following year, Columbia entered the role-playing games market with Hârn, designed by N. Robin Crossby.

In the mid-1980s, both Gutteridge and Gibson left the company, leaving Dalgliesh as the sole owner.

[2] Each issue is approximately 32 pages and includes articles about Hârnic kingdoms, cities, castles, history, creatures, and other gaming topics.