Meteor Corp is my Cairn hack with the intended use of playing Mothership modules without using actual Mothership.
It is still a work in progress and missing significant sections, but it’s playable as written so I thought it would be helpful to post it here to get feedback. I don’t plan to put it up on itch or publicize it until it’s more complete.
I’m running my own playtests, and will be updating as I do so.
The reason for Luck is also the answer to your second question.
The way I have Abilities split is:
Body for things that involve your innate strength, speed, etc.
Training for things you learned how to do.
Resolve for basically Panic/Fear Saves.
Which leaves a gap of things that are not just parts of your physical body, and things that you haven’t learned to do.
That gap is filled by Luck. It’s for things you aren’t Skilled in, and for things that aren’t just your speed or strength.
If you want to try hacking a computer to do something, but you never actually learned how to program, you’d roll Luck to see if there’s still just a chance you manage to muddle through. It can also be used for things that are outside of your direct control, but have an element of chance involved.
In short: Luck Saves are for things that would use Training, but you don’t actually have a Skill to let you do so.
Also depending on how soon you play to run the game, I have a new version in the works that rewrites all of the equipment and items. I can try to get you a WIP version of that if you want. In any case, thanks for taking a look! I’m very interested to hear your game goes!