Oddworld: Munch's Oddysee HD, a remastered edition of the cult 3D platformer, is currently free to PlayStation Plus subscribers.
The special offer ends at the end of the week, according to Sony representative Morgan Haro, who discussed the deal on the official PlayStation Blog.
Munch's Oddysee HD, a remake of the celebrated 2001 title, >launched on the PS3 in December for $10. UK studio Just Add Water provided new textures, audio and assets for the re-release, and integrated Trophy support.
A Vita version is expected to launch in a matter of months.
PlayStation Plus is a premium subscription service (priced at £40 / $50 per year) that offers members early access to demos, as well as discount prices and free games for a limited period.
However, at E3, Sony revealed that a PlayStation Plus subscription would be mandatory in order to play multiplayer on PS4.
Sony Worldwide Studios president Shuhei Yoshida defended the company's decision to charge customers for online multiplayer.
In an interview with CVG at E3, Yoshida explained the move was necessary to maintain a high quality service and facilitate improvements and expansions.
"That's [was] a big decision," he said, "what we internally discussed and decided is that we will continue the free access to online play on PS3 and Vita, so that's clear. But because on PS4 the online connectivity features such as second screen, auto downloads and share features - these are one big pillar of the PS4 experience and we will continue to invest in this area to expand and improve these online features and services."