No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $311.5K — a different platform, not this one.

Caesar™ IV

Hail Caesar! Starting as governor of a newly formed province in the Roman Empire your goal is simple: advance up the empire's political ladder to become the next Caesar. As governor, you will have total control over your province: including city planning, finances, and defenses. As you succeed you will be given new challenges in other provinces within the Roman Empire ultimately ending in the heart of the empire: Rome. Caesar™ IV represents the culmination of more than a decade of development experience in the city builder genre making it the definitive ancient city builder. Plebs need not apply. Build Your Rome: Build your city in any imaginable combination. Bask in the awe-inspiring glory of more than 100 unique structures. Economic Control: With over 30 tradable goods, 10 industries, 4 markets and foreign trade routes the economic possibilities are vast. Experience Life in Ancient Rome: Interact with more than 75 unique characters within your city. Combat Functionality: Take direct control over your legions, who gain experience through combat and training, as you ward off barbaric invasions. Over 100 Hours of Gameplay: Including career mode, standalone competitive scenarios, and sandbox mode.