TOPIC:

I've been playing on 2 such servers lately, but they got shut down. By ultrahard I mean weight multiplier for trains at least X6 ( the settings on your actual ultrahard server. The goal would obviously be a lot lower, like 10 mil or something .
The starting year would be 1927, because that's when we get the Kirby locomotive. What do you say?

EDIT: +original acceleration model
EDIT 2: +vehicle breakdowns: normal

IMO you can't make OpenTDD any harder by changing settings, only more annoying or boring.

I agree with dP since there's a thin line between make a game harder and turning it boring.

Anyway Bogdyy, I suggest you to master our servers #7 and #19 (K3) - or, currently, our TRAINING server #97.

Okay, I'll try those. Thanks for answering me . I'll stick to single player for harder games. I like struggling not to go bankrupt though

All you need to know to make tons of money in OpenTTD is this: wiki.openttd.org/Cargo_income

It may look complicated by basically boils down to this
1. Distance increases payment. You need to transport relatively far to get decent income. It's much better to do very long rounte then a very short one. And if you want to be perfectly effecient there is an optimal income distance, but it varies for different engines and settings, here is a tool that helps calculating it in some cases: citymania.org/tools/profit
2. Diagonals are more profitable. Because manhattan distance is used for payment it is doubled on diagonal and travelling time is only increased by 50% so overall you get 33% more money on diagonals.
3. Some cargos are better for making money than others. Because of higher payment rates, higher capacity wagons or less weight. Speaking of weight, cargo multiplier doesn't increase weigth of passengers making them even more unblanced then they already are.
4. Travel time decreases payment. So max speed is very important. Your trains also need to have enough power to get to max speed relatively quickly. Though once your building speed is high enough you may also consider buying cheaper vehicles at start since you can make more of them. For example on default train set this makes SH125 the best starting loco, even if monorail or maglev is available.
5. Empty trains don'm make money, use full load and transport cargo both ways. It's very easy with passengers, but you can do 2-way routes with other cargo too.

Once you master this it's pretty much impossible to go bankrupt, at least if settings are even remotely reasonable. And after that only this that matters if you have enough money to build more stuff or you just have to sit and wait untill you get enough which is simply boring.