A sequel to Company of Heroes 2, the game features new mechanics and modes and is set in the Italian and North African theaters of World War II.

The team chose the Mediterranean theatre as the setting allowed the inclusion of a variety of environments, which is a feature frequently requested by players of older games.

In addition, the team added that the Italian areas in the game offered "broader palette for environmental gameplay" and players can make use of verticality of the maps to plan their moves and attacks.

[14] In August 2022, the Polish toy company Cobi announced that they acquired a license with Relic Entertainment to publish North Africa and Italy themed brick sets.

[28] PC Gamer thought that the Italian campaign was "fundamentally broken", with AI lacking aggressiveness and the implementation of subcommanders which they described as "confused".

[30] Rock Paper Shotgun felt that while some elements of the game were unpolished, the overall scope of the campaign made up for it "Still, the sheer breadth of what's on offer here in the Italian campaign is mightily impressive for a first attempt at this style of war gaming... it feels like precisely the sort of homecoming you'd want from this prodigal RTS series".

[32] TouchArcade wrote that the visuals proved inconsistent on a small screen but the overall gameplay remained intact, "As of its most recent patch, I’m very pleased with Company of Heroes 3 on Steam Deck, and you will find a lot to like here assuming you’re OK with the controls".