Crusader Kings II
I'm not sure how I'd ask Caliber, or in general, but is there a way to set this so it only adds gold in increments of 500? Theres a very exploitable "Ambition" in the game to amass wealth, it can be repeated indefinintly.
It requires you to be below 500g and requires you to attain 500g. A leader could be made incredibly powerful through the use of this but with the trainer giving you eleventy billion gold it becomes impossible.
Uhm from what I've seen that ambition merely seems to give you 1 Stewardship skill, which isn't a big deal. You could easily gain a lot of stewardship by editing the events.