Grenadier also released in 1980 a series of midi-games called the Great Little Games Line, which consisted of the games Seawolf, Journey, Dwarf Mountain, and Hydra.  Although these simple but durable and professionally-developed games---intended for fast-play at a low cost---could not compete with the higher-budget product of established war/board games companies such as Avalon Hill and SPI, the production and release of these games served to expand Grenadier's product line and increase its image as an attentive company open to trying out ideas.