We built 40 multiplayer games, generating $1M in revenue and 30 million YouTube views in 12 months.
Today, we're opening up our tools.
The world's first programming language built for multiplayer game development:
With CSL, you no longer consider the client/server boundary, replicating game state, or client-side prediction. Instead, you write your game as though it were single player:
1. The client and the server both run the same code every frame.
2. The server is authoritative and replicates diffs of its memory over the network to clients to correct for divergence.
If you're a game developer, this is a dream come true. You get smooth client-side prediction, server authority, with no extra code. Plus, you can hot-reload and rewind while playing.
If you're a vibecoder this removes context overhead when working in multiplayer codebases. In Luau/C# codebases, we found the majority of the bugs models introduced were because of misunderstandings in where code was being executed and how state should be synced as games became more complex.
Codex and Claude Code with the CSL skill can one-shot complex multiplayer games that can be shipped to the world with a single click.
The All Out Editor:
Our editor will feel familiar to developers with Roblox or Unity experience, but includes features designed to dramatically accelerate world creation:
- 250,000 high-quality human-authored assets. Generate your own or remix existing ones in seconds.
- Built-in tile editor, terrain painting, and map prefabs.
- An epic MCP for world building, scripting, and testing.
The All Out Platform and Community:
We've built a community of hundreds of thousands of players with 30,000+ playing each day and our first third-party game developer selling $6,000 of game passes in one month.
We handle servers, matchmaking, data persistence, and social, and you can monetize with in-game products and revenue sharing.
The team is cracked and we're shipping daily.
If you'd like early access to the dev platform, send me a DM with your All Out username.
This is the first "roblox clone" ive found thats actually BETTER in a lot of ways, reminds me of club penguin
Polytoria had some weird management, and was a terrible un-unique game
this game (Alll-out) has a unique new art style, and they literally developed a better coding language then roblox just for the site
its all 2d games and perfect for at school or things like that (this post is unsponsored btw i just think its cool)
and apparently some game developers made $4,000 in their first week on the platform it might be OP
We have 2 NEW GAMES for you to try
Who Killed My Crush
An ogre is trying to kill your crush! Can you stop them before it's too late?
King of the Hill - Early Access
Capture the zone and become king. Winners receive glory, exp and coins.
⚔️ NEW GAME DROPPED ⚔️
Become a Samurai, Tank, or Medic in Bed Wars Classes.
Want a break between games? Hang out in the new Bed Wars Hub world and unlock upgrades!
Play Now on iOS, Android, or PC: https://t.co/7MBA0S5y7g
🎊NEW GAME: Who Killed Sprunki + FREE Skin
There's a free Sprunki skin in the shop for a limited time to grab.
🔎 EXTERMINATOR: Solve the mystery of Sprunki’s murder. Use tools to analyze evidence, interrogate suspects, and expose the Killer. But be careful—false accusations have consequences.
👤 SUSPECT: Complete tasks, sabotage investigations, and keep your story straight. Can you stay innocent in the eyes of the Exterminator?
🗡️KILLER: Eliminate everyone without getting caught. Stay hidden, deceive, and strike when the time is right.
Bed Wars is OUT NOW on All Out. Over 200 people are on in the first 5 minutes.
Play Now: https://t.co/NydlrzDTFx
⚔️ BATTLE: Team up and protect your bed while destroying your opponents’. Outplay and outlast to win!
🚧 BUILD: Gather resources and build defenses. The stronger your base, the better your chances!
🧨 DESTROY: Coordinate with your team to take down enemy beds and eliminate your rivals.
🚨All Out is OUT NOW on Android!🚨
Get ready for Bed Wars, Murder Mystery, Battlegrounds, and more. Grab your friends and jump into the action!
Download now: https://t.co/yGxWJMBoqc