[updated] Download Left 4 Dead 1 Highly Compressed 186mb Work -
Left 4 Dead 1 Highly Compressed: Can You Really Download it in 186MB?
It does not exist.
If you are searching for a full version of Left 4 Dead 1 compressed to roughly 186MB, the short review is this: Any website claiming to offer the full game at this file size is hosting malware, a fake file, or a scam.