What is the best free game like Left 4 Dead?
On this list, Nightwood Undead is the closest: co-op zombie waves in first person, online with friends. All Chatforce games here are free and open from a link.

Left 4 Dead (Valve, 2008) and Left 4 Dead 2 (2009) are co-op zombie shooters: four survivors fight through hordes of infected and only make it if they stick together. Games like Left 4 Dead need co-op, a lot of zombies and a reason to keep moving. Here are six free games made by creators on Chatforce, most of them co-op, plus four other well-known co-op horde shooters.
Got a full squad? See our 4-player games.

Solo or online co-op · 3D · Free to play from a link
You and your friends hold off 50 waves of zombies in a dark, foggy forest. See how long you last.

Solo or online co-op · 2D · Free to play from a link
A top-down zombie survival game. Scavenge supplies, clear infested zones and defend your base alone or with friends.

Solo, online co-op or same screen · 2D · Free to play from a link
A side-scrolling run-and-gun shooter with a campaign and a survival horde mode.

Solo or online co-op · 3D · Free to play from a link
A first-person arena shooter. Spawn in with friends and beat waves of bots together.

Solo · 3D · Free to play from a link
The last person alive in a dead city. Spend your kills on bigger guns and hold out one more wave.

Solo · 3D · Free to play from a link
A story zombie apocalypse. A hero and his family scavenge and fight to survive the night the yellow moon rises.
Turtle Rock Studios · PC and consoles · 2021
Made by the studio behind Left 4 Dead. Four players fight through hordes of the Ridden, with a card system that changes each run.
Saber Interactive · PC and consoles · 2021
Four-player co-op against huge swarms that pile up over walls.
Ghost Ship Games · PC and consoles · 2020
Co-op dwarves mine alien caves while bug swarms attack. The same four-friends-against-a-horde feeling.
Tripwire Interactive · PC and consoles · 2025
Co-op waves of monsters, with money between waves for better weapons.
Friends, a horde and a reason to keep moving. Nightwood Undead, Rot & Ruin, Frontline Ops and ZellarX all let you team up online. End of Days and Yellow Moon are solo, for nights when nobody else is on.
Chatforce is an AI platform that turns a game idea into a playable 2D or 3D game you can share with a link. It’s slop-proof by design, because each agent specializes in one part of game development: the studio director plans the game, the coder builds it, the artist makes the art, and the sound engineer handles music and sound effects. A first playable takes about 10 to 15 minutes, and then you keep changing it in chat.
Describe it, like ‘four survivors fight from a hospital roof to a helicopter, with a big zombie at the end of each level’, and the first version is playable in minutes. Online co-op works in 2D and 3D, so friends can join from a link.
You can join the Creator Program for free. Accepted creators get chips, the credits you spend to build and edit games, with a welcome grant and a daily top-up.
Start with the FPS game maker, the survival game maker or the multiplayer game maker, or read how to make a game like Project Zomboid.
Made and published by people using Chatforce. See more games
Every Chatforce game on this list was opened live on chatforce.com on October 24, 2026. What we say about each one comes from its published description, so player counts and modes are only listed where the game itself says so. Every Chatforce game here is free to play from a link, with no download and no account, and has on-screen touch controls for phones.
On this list, Nightwood Undead is the closest: co-op zombie waves in first person, online with friends. All Chatforce games here are free and open from a link.
Yes. It’s made by Turtle Rock Studios, the studio that made the original Left 4 Dead, and it’s built around the same four-player co-op.
Nightwood Undead, Rot & Ruin, Frontline Ops and ZellarX all support online co-op. Share the game’s link and your friends join.
Yes. Describe the survivors, the map and the zombies on Chatforce and you’ll have a playable first version in about 10 to 15 minutes.
Game listGames Like KrunkerFast shooters and FPS games you can jump into.
Game listGames Like Vampire SurvivorsHorde survival games with auto attacks, huge enemy swarms and upgrade builds.
Game listGames Like Lethal CompanyCo-op horror, scavenging and space salvage games, plus R.E.P.O. and Content Warning.
Game listGames Like BrotatoArena horde survival games with short runs and big builds.
Game listGames Like PhasmophobiaCo-op horror and ghost hunting games to play with friends.