Prototype Mk 3

This was designed as an Single Player experience in mind. Players who are strong-willed with large amount of patience, stubborn and are also willing to sacrifice in order for the team to advance, then give this a shot. This campaign is ...

UPDATE 5/12/13: Survival mode added (BETA)! Difficulty lobby added! A research/barricade based game inspired by rimrook's 'Let's Build a Rocket!' with an added twist. Players must build barricades to protect themselves, while using gas ...

The core to the sequel Let's Build a Rocket. This powerful setup allows players to freeform build their forts and defend their base against zombies! Included are source files and a playable example map. Help make Let's Build maps better ...

This is my very first Survival map, and first map in general, but I'm very proud of it and I'm very proud of where it's at right now. In this map, Survivors will fight off hordes of zombies in an abandoned building that used to house a s...

The Defense Double Pack introduces two new sub-game modes for Survival! In Sandbox Defense, you use the available support abilities and structures to make any defense you want! In Base Defense, construct buildings, hire mercs, buy supp...

<<NEW VERSION 5 RELEASED>> This is my first campaign. 3 custom maps based on real places from Spain (coop only). First map is about my neighbourhood of Valencia. Second is the place where I used to play with my band. Third is the place w...

Let's Build a Plane , is Following of the map Let's Build a car

The first chapter, Mob Stadium 2012 holds the secret to escaping the end of all time. Traps, challenges, and a Grand Finale await your demise in this latest version of Mob Stadium, a single but challenging CO-OP map. L4D2 add-on supp...