In the Atmosphere

Anyone aware of a table or document that tells you what sorts of chemical compositions are possible for planets in SF<br /><br />It would be really good to know what mixes of gases are considered breathable<br /><br />What would be breathable with some sort of oxygen concentration equipment<br /><br />Whats mixes would require sealed suits- environmental or pressure suits.<br /><br />Ideally a table would be the handiest <br /><br />Dire Press free tools gives you atmosphere info in their system generator but it is abstract: dense toxic, thin toxic, thin reducing,  standard toxic, dense breathable<br />RE: http://donjon.bin.sh/<br /><br />I suppose the abstract method has something to say for it- with classifications of Thin, Standard, Dense and modifiers of Reducing, Breathable, and Toxic<br /><br />Yet there is no explanations as to what those terms mean in game terms; I would generally interpret toxic to require at least a gas mask or enviro suit (depends of if the gas is toxic if breathed or if its toxic if in contact with skin) Not sure what reducing means but a dense and thin atmosphere ought to have modifiers on activity.

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