In Coriolis a lot of the things that are defined as actions (choices you make before the roll) in Forbidden Lands, are listed instead as bonus effects you pay for with extra successes after the roll. Apart from that, renaming some FL slow actions as “normal” (2 ap) should not change the game too much, but personally the action point economy of Coriolis feels a tiny bit clunky to me.
I am not sure exactly what you mean by “rule of 1” but if you mean “Ones wear you down”, I think getting rid of this philosophy would ruin the game.
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