While the PSP is often remembered for its big hits like Crisis Core and Monster Hunter, it also hosted an 138 impressive catalog of underappreciated gems. Many of these lesser-known titles not only stood toe-to-toe with the best PlayStation games of their time, but also offered gameplay experiences that were refreshingly different. In the rush to celebrate the biggest names, these hidden treasures are often left behind — but they deserve a second look.

Killzone: Liberation is one such title. Often overshadowed by its console counterparts, this PSP-exclusive spin-off adopted a top-down, tactical approach rather than following the FPS model of the main series. The change in perspective introduced a new layer of strategy, making the game stand out. It featured impressive AI, challenging missions, and a surprising amount of depth. Despite its quality, it remains under-discussed in conversations about the best games on the platform.

Another overlooked gem is Tactics Ogre: Let Us Cling Together, a tactical RPG remake that brought enhanced visuals, rebalanced mechanics, and deep narrative branching to the PSP. It came during a time when tactical games were niche, but its sophistication and replayability were unmatched. For fans of the genre, it ranks among the most rewarding experiences — and yet, it never received the mainstream praise it deserved.

These forgotten titles show that the PSP was more than just a vehicle for PlayStation’s flagship franchises. It was a place where creativity thrived, experimentation was welcomed, and unique gameplay styles could flourish. Revisiting these games today offers not just nostalgia, but a renewed appreciation for the diversity and ambition that defined the platform.