Terraforming Mars vs Earth: Which Should You Buy?

In Terraforming Mars, you're a corporation warming the planet, flooding in oceans, and seeding oxygen until Mars hits habitable. You do it all through cards, over 200 of them, and each one bolts another part onto your economy. That engine is the hook, and it holds. It's some of the most satisfying building in the hobby, and the theme lines up so well that every action feels like it's actually changing Mars. The catch is pacing. A heavy card hand invites analysis paralysis, turns can drag, and an early lead tends to run away with the game.

Earth flips the energy completely. You're growing a 4x4 grid where each card is a plant, animal, or terrain that fires off little chains of resources, and Maxime Tardif's big trick is simultaneous play. When one person picks an action, everybody else gets a smaller version of it, so you're almost never just sitting there. Stackable 3D trees sprout on your cards as you go, and the table ends up looking alive. People compare it to Wingspan, but it's denser. It's also quiet. Reviewer after reviewer lands on the same phrase, multiplayer solitaire, and honestly, they're not wrong.

Neither one is a breezy teach, but they're hard in different ways. Terraforming Mars is heavy on purpose. It rewards patience, punishes anyone hoping for something light and quick, and asks for a solid two hours of your evening. If your group already likes big euros, the rules go down fine. Earth is officially the lighter game, medium weight and 45-90 minutes, but that first play is rougher than the box suggests. The icons are dense, the rulebook is a known headache, and new-to-the-hobby players can drown in the sheer number of options.

Here's the thing though. Once you're past game one, Earth flows beautifully because those simultaneous turns keep everyone busy. Mars never quite sheds its slow stretches. So pick your pain: one rough teaching night with Earth, or a lifetime of waiting on the slowest thinker at the table with Mars.

Variety is a wash, and that's a compliment to both. Mars packs over 200 project cards and 12 corporations, and one Meeple Mountain reviewer put in twenty games and said no two felt the same. Earth answers with over 280 unique cards, so every play feels fresh there too. Where they split is player count and looks. Mars sings at three or four (two players drags, and five ends before your engine really gets going), and its table presence is, well, humble. The components don't match the price, and those little plastic cubes slide everywhere the moment someone bumps the table. Grab a playmat.

Earth is the looker of the pair, with 3D trees and a tableau that grows right in front of you, and it scales unusually well because nobody's ever waiting. It's also a standout solo game, it won the 2023 Solo Award at the International Gamers Awards. The trade-off is that barely-there interaction. No card market to fight over, no take-that, no blocking. If your group's joy comes from trash talk and chaos, Earth won't feed it.