ITSAGOAL.org - Online Football Manager Game - Free Soccer Manager ?

Used to play it for four or so years. There's no simulation. No IAPs, though you can subscribe and get some addtional options, e.g. change your team name or whatnot. Nothing that would influence outcome of the game.

It's very much a long-term game, there's no way to speed it up.

Small community with dedicated players; around 1,000 managers or so.