Sorry if this is the wrong place to post this, but how to keep a separate install that won't be auto updated by steam?
I tried copying the SE folder to another location, but it's still running from steam.

Actully, most marine terras with suitable pressure still have too much SO2(10^-3~10^-4 atm) 

I found one with not enough O2, one with TOO much O2(and pressure), and one with too much SO2.

Yeah, I loaded the fictional ones and I got two b's and two c's in 0.99.
Works flawlessly in 0.98 however.