CSD18

Trying to remember a game I used to play. It would have been in the late '00s or very early '10s. It was a free, online FPS that was a knock-off of Counterstrike. I remember the graphics were extremely blocky, and that there was one map that was a de-dust lookalike and another that was a castle. I sunk hours into it because it was free and ran on my awful Acer netbook, but I cannot for the life of me remember what it was called.

Either in terms of performance/experience or purely in price. My mind immediately went to the Dodge Challenger, which goes from the under $30k V6 base model to the 800 hp, $85k Demon, but I'd be interested in seeing what you all can come up with.