Terraforming Mars review: a deep engine-builder for serious players

Terraforming Mars is one of the defining strategy board games of its era, and this Terraforming Mars review looks at whether it still earns its reputation. Designed by Jacob Fryxelius and released by Swedish family company FryxGames in 2016, it won the Deutscher Spiele Preis in 2017 and spent years near the top of the BoardGameGeek rankings. It has since grown into a full product line with expansions, a card game and digital versions.

This review is based on the publisher's information, independent reviews and player feedback. It covers gameplay, solo mode, expansions, the most common criticisms and who should buy it in 2026.

How Terraforming Mars plays

Each player runs a corporation helping to make Mars habitable. Together, all players raise three global parameters: temperature, oxygen and ocean coverage. The game ends at the end of the generation in which all three reach their targets, so everyone is working toward the same finish line while competing for points.

Each generation, players buy project cards, then take turns doing one or two actions at a time: playing cards, placing cities, greenery and ocean tiles, or using standard projects. Your production of money, steel, titanium, plants, energy and heat pays out at the end of every generation, so early investments snowball.

Points come from your terraform rating, tiles on the map, milestones, awards and many cards. That gives the game plenty of different strategies.

• Raise temperature, oxygen and oceans
• Build production to fund bigger projects
• Place cities and greenery on the Mars map
• Claim milestones and fund awards

Engine building and card combos

The cards are the heart of the game. There are hundreds of different project cards, from asteroid strikes to genetically engineered microbes, and many interact with each other through tags such as space, plant, science or Jovian. Finding a combination that pays off turn after turn is where Terraforming Mars becomes addictive.

Reviewers regularly praise how the theme and mechanics fit together. Releasing heat raises the temperature, plants become greenery that adds oxygen, and ocean tiles give bonuses to adjacent placements. It feels like a science story unfolding on the table.

Weaknesses: length, luck and components

Terraforming Mars is long. The box lists 90 to 120 minutes, but games with four or five players, or new players, often run past two and a half hours. Downtime can also grow as players study their cards.

Card draws matter a lot, and a strong early hand can decide a game. Independent reviewers note that new players are at a clear disadvantage against experienced ones, because knowing the card pool is a big part of skill, and there is little catch-up. Interaction is mostly indirect, through racing for tiles, milestones and awards, plus some cards that reduce opponents' resources.

The original components are functional rather than luxurious. The thin player boards let cubes slide when bumped, which is why FryxGames sells dual-layer boards as an accessory.

Solo mode and player count

The base game includes a solo challenge in which you try to complete terraforming within a fixed number of generations. It is well liked by solo players. In 2024 FryxGames added a dedicated Automa expansion for a solo experience against an artificial opponent.

Many players find two to three players the sweet spot, balancing interaction with a reasonable play time. Five players works but is long.

Expansions, Ares Expedition and digital versions

The expansion range is large. Prelude is the most widely recommended, because it speeds up the slow start by giving each player an extra boost at the beginning. Hellas and Elysium add new maps, Venus Next adds a fourth parameter, Colonies adds trade, and Turmoil adds politics. 2024 brought Prelude 2, new maps and a Milestones and Awards pack.

Terraforming Mars: Ares Expedition (2021) is a shorter, card-driven version with simultaneous turns, suited to players who like the theme but want faster games. A digital adaptation is also available on PC, consoles and mobile.

Who should buy Terraforming Mars?

Terraforming Mars is a great choice for players who have already enjoyed gateway games such as Catan, Ticket to Ride or Wingspan and want something deeper. It suits groups that enjoy planning, reading cards and long sessions. The age rating is 12 and up.

It is not a good pick for casual family nights, players who want lots of direct conflict, or groups with little time. For them, Ares Expedition or a lighter engine-builder may be better.

Key specs

Designer

Jacob Fryxelius

Publisher

FryxGames (2016), with international partners

Players

1 to 5

Age

12+

Play time

90 to 120 minutes (often longer)

Components

Mars board, project and corporation cards, player boards, tiles, resource cubes

Awards

Deutscher Spiele Preis 2017 winner, Kennerspiel des Jahres 2017 nominee

Alternatives to consider

• Wingspan: A shorter, prettier engine-builder with a calmer feel and an excellent solo mode.
• Terraforming Mars: Ares Expedition: The same theme with simultaneous turns and a shorter play time.
• Ark Nova: A heavier card-driven engine-builder for players who want even more depth.

Frequently asked questions

Terraforming Mars remains one of the most rewarding strategy games you can buy. Its card combos and science theme keep players coming back for dozens of games, even if the length, luck and plain components are real drawbacks. For strategy fans ready to invest an evening, it is still a standout choice in 2026, especially with the Prelude expansion.

How we research: Reviews are based on the maker’s specifications, published independent tests and owner reports. Scores compare the product with others in its class.