Yes, another free game for Sony's indy-friendly PSP. This time it's a rather impressive First Person Shooter (click here for a FPS history lesson), that uses a lovely homebrew 3D engine and is usually (not at parties really) called Dungeons 3D. Get it here, and while you're at it, do have a try at the map creating tool.
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Related Tags: Sony PSP, Free PSP game, PSP, Dungeons 3D, FPS, free PSP games, Sony, free, game