Р‘рµр·рїр»р°с‚рѕрѕ Рёр·с‚рµрір»сџрѕрµ Рѕр° Sid Meier's Civilization V Guide

: You can often find highly discounted Steam keys on G2A or MMOGA . Sid Meier's Civilization® V on Steam

: You can download a free Civilization V PC Demo on Steam to test the gameplay before purchasing. : You can often find highly discounted Steam

: An open-source, lightweight remake of Civilization V that stays very close to the original mechanics. : You can often find highly discounted Steam

If you're looking for the "Civ experience" without the price tag, these open-source projects are completely free: : You can often find highly discounted Steam

While not free, the game frequently goes on sale for a fraction of its original price: