Some changes to the Sony Rewards programs mean those who earn trophies in PlayStation games can earn points that are good toward discounts on the PlayStation Store.

Under the terms, earning 100 silver trophies is worth 100 points, 25 gold trophies net 250 points and 10 platinum trophies — which are awarded for earning every trophy a game offers — gets 1,000 points. (This offer is good for U.S. gamers only).

Currently, 1,000 points in the Sony Rewards program gets a user a $10 discount voucher on PlayStation Network. The other catch is that a user must be signed up for the Sony Rewards program and have their PlayStation Network account linked to it prior to earning these trophies. Sony isn’t awarding points for someone’s prior work, in other words.

For those looking to grind their way to discounts, this still represents a lot of work. Getting a platinum trophy is no small accomplishment and usually involves several lesser trophies for specific achievements.

If it’s an older game, and the trophy is for an online event, it may not even be possible to collect that trophy if online support is turned off.

The Sony Rewards program also offers discount codes, or points for things like signing up for trial programs (four in all), subscribing to PlayStation Network services or buying and renting movies. This page has all of the details. But again, none of this accrues until the user links their account to the service (so if you’re a PlayStation Plus subscriber and haven’t yet, that won’t count). And it’s only good in the United States.