The Atmo Collectors Promo Card is a cool bonus that arrived in 2018 with the Dice Tower Kickstarter campaign and immediately plugs into the Colonies expansion. It works with any mix of the base game, whether just the core of Terraforming Mars or with other expansions, making it super versatile. The card brings the "floaters" mechanic, first introduced in Venus Next but already covered in the game rules as "other resources." Each time you play, you can add a floater to your production spot, or spend one to gain 2 titanium, 3 energy, or 4 heat—all in your turn, without spending extra resources. It’s a card that gives more production options and the satisfying sense of choice fans love. Plus, as a promo, it often shows up in collectors’ sets and can be a good investment for those who want everything the game universe offers. The card is small but has a strategic impact that can shift a game’s course, especially when you need that extra resource boost to set up a production line or earn terraforming points. In short, the Atmo Collectors Promo Card is a useful, fun accessory that completes your Terraforming Mars deck without overcomplicating things.

The card is simple but adds a new layer of decision: you can accumulate floaters to use later or spend them immediately to accelerate titanium, energy, or heat production. This can be decisive in games with limited resources or when competition for resources is high. If you collect promos or want more variety in your game, this card is a great addition.

For those already familiar with the base game, the Atmo Collectors Promo Card is a light but effective add‑on, offering more flexibility and production options. If you don’t have the Colonies expansion yet, you can use it in the base game, but the expansion already includes it, so you don’t need to buy it twice. Overall, it’s a bonus piece worth having in your Terraforming Mars arsenal.