Terraforming Mars: Breathing Filters--and Minimum Requirements

Breathing Filters

Tags	Science
Add. Req	Min.: Oxygen 7%
Card List Cost	11
Costs	Actual	Normalized	Max Norm	Min Norm
Req. Cost	0	0	0	0
Effect Cost	0	0	0	0
Final Card Cost	14	9	9	9
Value
VP Value	26	26	26	26
Income Value	0	0	0	0
Final Profit(Loss)	12	12	12	12
ROI	85.71%	85.71%	85.71%	85.71%
Breakeven Turn	Immediate

Notes

Breathing filters, like Trans-Neptune Probe(TNP), is a fairly simple card, but with 1 minor addition: the minimum requirement of Oxygen of 7%. However, Breathing Filters provides a much greater return.

Requirements

Important Oxygen Levels per Turn

Mins & Maxes

Many cards have either minimum or maximum requirements. These requirements can either be "Eventual" requirements or "Optional" requirements. Of these two requirements, a card can have either a Minimum (min) or a Maximum (max) of these requirements.

"Eventual" Requirements are one of the three requirements for Terraforming Mars: Water, Oxygen, or Temperature. These are Eventual requirements because they will eventually be met as they are required to win the game.

"Optional" Requirements are any requirement other than those needed to win the game and may include have a certain number of Tags in play, a certain number of cities, or some other special requirement.

Minimum Eventual Requirements (MinER) Cost Calculation

Important Ocean Levels per Turn

Cards with Minimum Eventual Requirements are not much of a requirement in terms of calculating cost. A MinER will eventually occur, so the card can be played. The major effect of an MER is the card may be delayed in being played, but the play is eventual (thus the name of the card). This effect may cause the card to either not generate as much as expected depending on when the requirement's average play occurs.

Maximum Eventual Requirements (MaxER) Cost Calculation

Cards with a MaxER are a true requirement. These cards must be played before the requirement is met, or the card is reduced to a value of zero. For cost purposes, the card's value is assumed to be only if the card is played before meeting this requirement.

Optional Requirements

Optional requirements are based on the probability an event occurs. For example, if a card requires one Science Tag, it is necessary to calculate the probability of a science tag being played. Grabbing these cards early is risky as the additional card may not occur and the 3mC spent on keeping the card may be lost. For calculation purposes the cost is based as a percentage probability the card may be played.

Important Temperature Levels per Turn

For some requirements (namely Venus levels), this number is a rough estimate as data collection on it is incomplete at this time.