Based on the map of Day of Defeat Source: 3xi_trainmap.

Based on the map of Day of Defeat Source: 3xi_trainmap.

This DOES require the L4D2onL4D Addon Support. The Survivors find themselves in a strange world, and must find a way to get out of the danger zone. A L4D2 entry to the Orange Map phenomenon ported to L4D1. Featuring wide-open terrain, plenty of unique quirks, and a visit from some special guests. Ideal for casual play. Known Issues: -This campaign requires shaders to be set to medium or higher.

After surviving an air crash, the survivors turn out to be in most epicenter of the contamination. The Military has already left all attempts to rescue survivors in the region.

Turtle Rock Studio's last Left 4 Dead campaign that was never finished, Dam It stitches Dead Air and Blood Harvest together.

This is The Ultimate Mod Testing and Reviewing Area ported from L4D2. Some of the items were shifted around to work better for L4D's items, since it has less than L4D2. The Uncommon Infected spawners spawn L4D's infected from each of the campaigns they're from. And the jukebox works just like the one in L4D2. Original map by Funreal Jukebox by L4D2onL4D Port by Lee

A simple map created for the sole purpose of killing, killng, and more killing. Don't take this map seriously. The arena houses enough supplies to last for years. The map is a great way to rid yourself of stress, or to rack up kills on certain weapons and gather Achievements wherever applicable. Don't bother asking this to be ported to Left 4 Dead 2. The answer will always be no.

Now playable in L4D2. The survivors were just trying to use the toilet but something went horribly wrong. The survivors were flushed into a world of constant challenges. Now they must complete these challenges to hopefully be free of this smelly world. WARNING: This campaign might be difficult/frustrating. Please read the top section of the changelog before reporting any problems in the campa...