Just like the ever elusive "Half-Life 3," Valve is, like they have always been, silent and quiet about the development of "Left 4 Dead 3." There's even no solid proof that the game coming out at all, let alone, being thought of.

To healp ease your excitement over the waiting game, here are total conversion mods in no particular order.

Campaign: Back to School

Possibly one of the best total conversion mod for "Left 4 Dead 2" out there. "Back to School" is a mod that includes an entire custom campaign, which is actually even longer than the other campaigns with the vanilla game.

Composed of seven levels with separate downloads. This custom campaign features well-designed levels that feels almost as if it was part of the actual game release. The original characters from the first game also makes their return.

Resident Evil 2 Side A and Side B

For those who are waiting for the "Resident Evil 2 Remake" and "Left 4 Dead 3," this mod might be a good time killer as both games are mixed into one great formula.

Resident Evil 2 Side A and Side B mod for "Left 4 Dead 2" is an RE2-inspired total conversion that provides a campaign that represents the story of the original RE2.

It has locations from Raccoon City as well as a number of familiar puzzles from R.P.D office. As shown in the trailer above, it even has a working third-person camera perspective for those who prefer the third-person camera style that started with "Resident Evil 4."

Dark Wood

This mod is more than a year old, but it is still one of the best total conversions for "Left 4 Dead 2" and a nice filler while waiting for any "Left 4 Dead 3" news.

Composed of 5 full-length maps, Dark Wood is inspired from a number of horror games like "F.E.A.R", "Resident Evil" and "Silent Hill."

The mod has its own original story along with unique textures, models and even sounds. The game has a very challenging difficulty, which is best enjoyed while playing multiplayer. It is, however, still an enjoyable experience playing alone.

These are just some of the many mods for "Left 4 Dead 2" and it may actually be best to enjoy most of them as there are no news of "Left 4 Dead 3" yet. Hopefully, Valve sheds even the tiniest lights to its fans.