Everybody limping every time

start raising really damn big (15-40 BB, open jam), see what happens.
you still want to get called - just try to figure out what the "limits" are

Those are obvious:
As Tomaloc said, try experimenting with retardedly big sizes and see if they still bite.
Work on your mental game.

This is just as obvious but still have to be spelled out:
What you studied for online games was mostly opening ranges and CBet and barreling frequencies on different boards for heads-up and 3 handed.
Have you done any work on 4+ handed pots?
Study the multiway pots!
Try doing some work in Equilab for multiway pots.
Your TPTK isn't so good in multiway pots. Perhaps you gotta lay it down.

Originally posted by Tomaloc
start raising really damn big (15-40 BB, open jam), see what happens.
you still want to get called - just try to figure out what the "limits" are

Yup -- that is one route -- but you can't do it every hand of course.
Another is to join the limpfest and get aggro post-flop when (if) you hit.
Another is to raise pot pre, then go aggro on the flop.

Above all, vary your play a ton

Good advices above. Biggest advantage on such live game is you know your opponents so adjust to them.

If those passive calling machines show aggression they usually have good hand. At least in their mind. So usually if they keep calling with absurd hands you want to go for thin value bets and give respect if they show aggression. Remember you don't need to beat all of their calling range just more than half of it.

Versus crazy maniac fellow aim to give rope. Meaning check to him more than you would as default also with strong holdings. I had once reggy opponent in my games who literally almost always bet big on flop and turn if you checked to him being preflop aggressor out of position. So I did ton of x-c and x-r lines. My cbet range was on other hand pretty weak. So very big exploitative tactic. Now was his strategy so absurd? I think it actually worked good versus player pool as most opponents probably took x-c flop and check turn line with very capped and weak ranges. Resulting in ton of fold equity.

Some players could be also very passive and tight. E.g. if you double barrel they continue only with good top pair or good draw. So going bit wild on these can print money.

you said it yourself, that you are a '100% wining ' player there and you 'made absurd amounts of money from them'
why fix something that is not broken
i would enjoy milking that cow , and if you looking for challenge or something like that go play online
good luck