Billion Citizens is a rogue-like deck-building game with city-builder mechanics where you play as a mayor planning how to create the greatest and most populous megalopolis of all times. Manage your deck of buildings and place them wisely to maximize their synergies.

Billion Citizens is a rogue-like deck-building game with city-builder mechanics, where your goal is to design a city capable of housing 1 billion inhabitants. <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4533070/extras/92960b351c8234bb345f0d301fe051e9.poster.avif?t=1779202909" width=800 height=230 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4533070/extras/92960b351c8234bb345f0d301fe051e9.webm?t=1779202909" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4533070/extras/92960b351c8234bb345f0d301fe051e9.mp4?t=1779202909" type="video/mp4"></video>Place your buildings, upgrade them, and combine them with your decrees to create powerful synergies. Use the money generated by your buildings to customize your deck and manage your production to construct more and more structures. You’ll need every possible optimization to reach the ultimate mandate, fend off political opponents, disasters, and an unhappy population to achieve victory. <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4533070/extras/becba0870cc35d6f81fbce36fa172622.poster.avif?t=1779202909" width=800 height=230 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4533070/extras/becba0870cc35d6f81fbce36fa172622.webm?t=1779202909" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4533070/extras/becba0870cc35d6f81fbce36fa172622.mp4?t=1779202909" type="video/mp4"></video>A city builder with a rogue-like twist.Combine, upgrade, explore, and build the largest cities using bonuses and Decrees.Multiple terrains with new environments to experiment with endlessly.As the Mayor, push the limits of your power: different starting conditions, unique Mayors, terrains, buildings, Decrees, and many hidden interactions to discover. Take advantage of your versatile political arsenal to create overpowered combos, improve your deck, and grow your population. <ul class="bb_ul"><li>40 unique decrees</li><li>6 terrains with different generation properties</li><li>6 Mayors with unique powers and starting conditions</li><li>50 different building tiles to create numerous combos </li></ul><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4533070/extras/361beb5a44db9b70eb68a580447be63b.poster.avif?t=1779202909" width=800 height=230 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4533070/extras/361beb5a44db9b70eb68a580447be63b.webm?t=1779202909" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4533070/extras/361beb5a44db9b70eb68a580447be63b.mp4?t=1779202909" type="video/mp4"></video>Dive into the wild and over-the-top world of Billion Citizens. Relax in this charming city builder offering thoughtful gameplay and a pleasant atmosphere.After each run, discover new Mayors, terrains, and buildings.Every game is different and offers a real challenge.Enjoy the soothing and delicate visuals of large cities and regions inspired by France.

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Billion Citizens Achievements