The ‘Big in Japan’ promotion features discounts of up to 70% on over 300 games in Europe, where it runs until 23.59pm GMT on Tuesday, March 3.
In the US over 500 games are discounted by up to 70% until March 6.
BioShock: The Collection, The Sims 4 and PlayStation VR title Firewall Zero Hour are free to download from the PlayStation Store for PS Plus members in February.
Sony said this month that PS4 has just had its weakest Christmas sales period since the console’s release in 2013 as adoption slows ahead of the PS5 release later this year.
The platform holder recently launched the PlayStation 5 section of its official UK website, although it said it’s “not quite ready to fully unveil” the next generation of PlayStation.