The taming of the Red Planet has begun! Corporations are competing to make Mars a habitable planet, spending vast resources and using innovative technologies to raise temperatures, create a breathable atmosphere and create oceans of water.

DLC:

Terraforming Mars - Prelude
Terraforming Mars - Hellas & Elysium
Terraforming Mars - Venus Next

picTerraforming Mars - Prelude
The taming of the Red Planet continues!
Enjoy new game mechanics and content with the Prelude expansion.
Join 5 new corporations: Point Luna, Cheung Shing Mars, Valley Trust, Vitor and Robinson Industries.
Discover the Prelude Phase and add a new level of strategy to your games: select 2 cards to specialize your corporation and gain a boost in the first turns.
Add 7 new projects to your games.
Take on the new solo challenge and be the first to reach Terraform Rank 63 across 14 generations and technologies. These are projects that do not directly contribute to terraforming, but make corporations stronger by adding new strategic options to the game!
Introducing the Wild Tag: When you perform an action, the Wild Tag becomes the tag of your choice.
Set up your single or online games and choose which parts of the expansion you want to play with: Prelude Phase, Prelude Corporations or Prelude Projects.
picTerraforming Mars - Hellas & Elysium
Explore the other side of Mars across two additional maps, each with their own features and strategies, thanks to the Hellas & Elysium DLC. The taming of the Red Planet continues!
Discover the amazing Elysium and a different face of Mars, peppered with valuable placement bonuses. Many of them are located on Mount Olympus and other similar volcanic sites. Capture them quickly or risk losing these places forever.
Hellas will take you to the Hellas Sea and to the South Pole. Play with two new map placement bonuses. The first one gives warmth, and the other gives the player an ocean tile in exchange for 6 mega credits. However, such great luck only comes once.
Each card also changes the rewards and milestones present in Terraforming Mars. From the Space Baron reward and the Polar Explorer milestone in Hellas to the unique Real Estate Trader tile in Elysium, get ready to take advantage of new strategic opportunities!
picTerraforming Mars - Venus Next
Venus has a deadly allure, but can you mine its resources? Get fast or free access to this new planet for your competitors.
Venus Next expands your games by adding new additional secondary mechanics focused on the use of the Morning Star. The World Government has stated that Venus should also be terraformed while you're at it! Build flying cities, make the atmosphere breathable, and take advantage of new ways to increase your terraforming rating. Take the terraforming of Mars to even bigger stars with:
• An additional 49 new project cards have been added to the main deck.
• 5 new corporations, such as the mighty Aphrodite or the flying Celestica.
• Two new resources: Floaters and "Wild".
• New Hoverlord milestone and Venusphile reward.
• Venus Field with its own parameters, tiles and a way to earn a terraforming rating.
• Additional new solar phase that increases the selected parameter with each generation for faster games.


Additional Information:
The taming of the Red Planet has begun!
Corporations are competing to make Mars a habitable planet, spending vast resources and using innovative technologies to raise temperatures, create a breathable atmosphere and create oceans of water. As terraforming progresses, more and more people will immigrate from Earth to live on the Red Planet.
In Terraforming Mars, you manage a corporation with a specific profile. Play project cards, increase production, place your cities and green areas on the map, and race for milestones and rewards!
Can your corporation pave the way for a new era of humanity?
GAME

Achieve a high terraform rating by increasing temperature and oxygen levels or creating oceans... Make the planet habitable for future generations!
Get victory points by building cities, infrastructure and other ambitious projects.
But be careful! Competing corporations will try to slow you down... You planted a good forest there... It would be a shame if an asteroid crashed right on top of it.

MAIN CHARACTERISTICS

An official adaptation of the iconic board game, faithfully developed with the help of Jacob Fryxelius, the board game's author.
Turn-based strategy: choose a specialized corporation, build facilities, research innovative technologies and manage the production of your resources
Life on Mars? Improve conditions on the Red Planet by warming it up to melt ice and create oceans, plant oxygen-producing flora, and introduce both small and large animals.
Corporate rivalry: you planted a nice forest there - wouldn't it be a shame if a large asteroid was pointed directly at it? Develop designs that will slow down your opponents!
Mars is for everyone: Play alone or with 5 players in multiplayer games against local or online opponents, humans or AI.
Game Variation: Try the Corporate Era rules for a more challenging game. This variant adds new cards, including 2 new corporations, and focuses on economics and technology. These are projects that do not directly contribute to terraforming, but make corporations stronger by adding new strategic options to the game!
Single Player Challenge: Complete terraforming Mars before the end of Generation 14. Experience new rules and features in the hardest single player mode on the (red) planet.
A draft option is now available: add a new level of strategy and depth by choosing your best cards and locking down your opponents. During the Research phase, start with 4 cards, choose one and pass the rest to the next player. Continue selecting a card and passing the others until all cards drawn have been played. Which card will you choose? Will you prevent your opponent from getting a card, or will you choose the one that best suits your strategy?


Installation procedure
Install sequentially - game, DLC
In each case, after launch, follow the installer's instructions.
Once installed, you can play.
Add-ons will continue to be offered in the in-game store, but new features will be available when you launch a new game.

System requirements :
Minimum:
OS: Windows 7 / Windows 8 / Windows 10
Processor: Dual Core 3.0 GHz
RAM: 4 GB RAM
Disk space: 250 MB

https://store.steampowered.com/app/800270/Terraforming_Mars/