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<blockquote data-quote="DMH" data-source="post: 3762853" data-attributes="member: 24945">GRAPH is gravity, radiation, atmospheric composition, pressure and temperature. Each has its own rules on how heros interact or survive within such conditions. Gravity is rather easy- speeds (inc falling damage) and skill checks are the only things affected (except in G5 where the heros go squish).Biochemistry was introduced in the GMG, but the ACs gave it some substance. There are 6 major series (the 7th being a catch all for whatever else there is). I is us, II is cold and based on ammonia, III is chlorine instead of oxygen, IV is cold, V is hot and VI is very hot and all 3 are based on sulfur in various forms. The only VII chemistry I can remember at the moment is iron carbonyl from one planet in the AC. It is a dry, deadly place to humans and the native species live around lakes made of iron carbonyl that dry up all the time (thus the animals are nomads). Other than a few variations on series I worlds, most of the effects are death if proper equipment fails.Personally I dislike the biochem rules and find those in the new GURPS Space to be much better.</blockquote>

[QUOTE="DMH, post: 3762853, member: 24945"] GRAPH is gravity, radiation, atmospheric composition, pressure and temperature. Each has its own rules on how heros interact or survive within such conditions. Gravity is rather easy- speeds (inc falling damage) and skill checks are the only things affected (except in G5 where the heros go squish). Biochemistry was introduced in the GMG, but the ACs gave it some substance. There are 6 major series (the 7th being a catch all for whatever else there is). I is us, II is cold and based on ammonia, III is chlorine instead of oxygen, IV is cold, V is hot and VI is very hot and all 3 are based on sulfur in various forms. The only VII chemistry I can remember at the moment is iron carbonyl from one planet in the AC. It is a dry, deadly place to humans and the native species live around lakes made of iron carbonyl that dry up all the time (thus the animals are nomads). Other than a few variations on series I worlds, most of the effects are death if proper equipment fails. Personally I dislike the biochem rules and find those in the new GURPS Space to be much better. [/QUOTE]

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