The Star wars series of games plays like PoP. You may want to try a demo.
For survival horror games list sorted by rating:
*www.dreamdawn.com/sh/list.php?posted=true&sort=world_score
If you own the PS2 then God Of War is the closest title which will give you a gameplay style similar to POP series.Apart from that I cant think of much for the PC version.
yeah, god of war is great, but downside is it is for ps2, my friend has ps2 and it is the best game i've ever played which is closest to POP warrior within. try it, its great
Lots of survival horror games out there . I guess you have already tried quake 4 and half life 2 . Some of the older games in the series were Undying and Aliens vs Predetor 2. Try them
You could try the Resident Evil and Silent Hill series. Though originally meant for consoles, there were PC ports (not too good) that you might want to try out. AvP2 is a good one and so is Clive Barker's Undying. I don't think Quake 4 qualifies as survival horror though and HL2 has that one stage, "We Don't Go To Ravenholm" which is truly survival horror.