In the game, the player controls a legatus who investigates the death of his father and travels throughout the Roman Republic and nearby nations as they expand Roman influence across the world. The game received mostly positive reviews from critics, who praised the game's strong gameplay elements and strong plot elements, but criticized its legionary battles for being weaker than the tactical gameplay and the length of time that battles could take. Each campaign region is a different "Act" inside of the game. In the legionary battles, the player assigns a Centurion to lead the attack, and can prepare the army before the battle to raise the odds of victory. Story-based battles often have objectives outside of defeating all enemies and sometimes can be won without engaging in combat; in one instance, a mission requires the player to quickly steal an Olympic trophy. In Expeditions: Rome, the player controls a legate in the later years of the Roman Republic. Real historical figures like Cicero, Julius Caesar, and Cato appear in the plot, although the game takes historical licenses with these people; the presence of the player character dramatically alters the path of Roman history throughout by his actions . After the death of his father from unknown political opponents, the player character flees to the armies of Consul Lucullus during the Third Mithridatic War. Logic Artists, the developers of the game, presented the game idea to THQ Nordic in 2018, which is when full development began in earnest. Concerned about the lack of variety in enemy types sometimes found in historical games, Logic Artists attempted to diversify the enemy character classes in a way that would make the user experience more enjoyable. Rock Paper Shotgun's Nate Crowley praised the game's attention to historical detail and noted that after a mediocre first half hour, the game "let's rip" and was incredibly fun.RPGamer's Alex Fuller called the game an "easy recommendation" and praised the game's flexibility in its difficulty settings for allowing the game to be tailored to what the player wants. IGN's Leana Hafer wished that the legionary combat was "more engrossing", an opinion shared by other critics.PC Gamer's Robert Zak wrote in a mixed review that battles took far too long, but appreciated the level of historical detail the game held.Rock Paper Shotgun's Nate Crowley criticized the game's lack of customization options for your player character and also felt that the game took far too long as you watched characters slowly move across the map.