So I figured why not get a bunch of people to play slots at the same time so we can hopefully reach the achievement. You hardly lose any sp because of all the slot coins it gives you 5k each.

sounds good :)

but only one person wins the achievement, right?

agreed ;)

If we were able to get quite a few people on at the same time to keep doing it, eventually we might can all hit it.. But it would have to be quite a bit of people because a lot of the time the jackpot hits before 100k

Are we sure the jackpot is set on a time? I thought it was random, just like winning 10k from random dice. I could be wrong.

I'd love to help. :)