"Earth 2140" is a real-time strategy video game released in 1997. Set in a futuristic world, it takes place in the year 2140, where players control factions vying for control over Earth's resources after a catastrophic event has altered the planet's environment. The game features a mix of land and water-based units, allowing for diverse tactical gameplay. Players can choose from three factions: the United Civilizations, the Green Earth, and the Mafias. Each faction has unique strengths and weaknesses, influencing strategies and gameplay styles. The game combines resource management, base building, and combat, making it a classic in the strategy genre.