My goal is to get 50% interest to get a shipping container. I'm willing to take the risk if it speeds up my goal.
I'm not interested in money and other fiddling in an open game.
I know about private groups and that's why I specifically asked about the open game.
Only you can decide how you choose to play. Try it & if you don't succeed change your approach again. Open doesn't need any extra incentive than it already has (imo).