In a post on the PS blog Sony today revealed that from next month, the way the Playstation Plus Instant Games collection works in Europe and North America is going to change in two ways.

The first change is that starting from June there will be two free games offered to owners of the Playstation 4 per month instead of just the one. In both regions the games lined up for offer on the PS4 in June are Pixeljunk Shooter Ultimate and Trine 2: The Complete Story both games with some puzzling elements to them, even if the first is a shooter and the second an adventure-puzzle game. European PS3 owners can get hold of NBA 2k14 and Lone Survivor, while North American owners can pick up NBA 2k14 as well, but the other game is Sly Cooper: Thieves in Time.

The other change counters the first though by adjusting the times each free game is being offered to a shorter time period. From now on the games will be offered free starting from the first Wednesday of the month and will remain that way until the first Wednesday of the next month. A few games that have been long available in the Instant Games collection will also be cycled out. Sony have justified this change by saying that most players are getting hold of their free copies of games towards the start of the free period anyway.

The reasons behind the changes were not alluded to in the post, but some speculate it might be because of recent changes to Xbox’s Gold program. Overall, the changes mean more free content for Playstation gamers to get hold of, but a shorter time window to do so.

PS blog post is here.