This week’s North American PlayStation Plus update is short but sweet. Following the addition of Resident Evil 5 to the Instant Game Collection last week, Sony has announced that Kim Swift’s mind bending Quantum Conundrum will be joining the party.

The first-person puzzler sees you cycling through different dimensions in order to solve a slew of devilish brain teasers. And if all that doesn’t prove challenging enough, the platform holder is also knocking 30 per cent off the equally monstrous Machinarium.

You can check out the full update through here. As always, let us know whether you’re satisfied in the comments section below.

[via blog.us.playstation.com]