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You can make an .io game like Agar.io or Slither.io with Chatforce: pick 2D or 3D when you create it, describe the game in chat, and play a first version in about 10 to 15 minutes. Describe it to Chatforce like this: start with one shared arena, food that makes players grow, and one rule: anyone bigger can eat anyone smaller. Then ask for online rooms friends join from a link (up to 8 players), bots to fill empty slots, and a quick respawn, and tune the balance in chat. The game is published at a link friends open in a browser.
Play .io style games made on Chatforce
Blob ArenaMade with ChatforceA 3D .io arena: host or join from an invite link, grow your blob, and be the last one standing.
IronwakeMade with ChatforceA top-down naval .io battler where kills earn XP and unlock bigger ships.
OuroborosMade with ChatforceA landscape mobile snake arcade game, the other classic eat-and-grow loop.
What makes an .io game work
.io games are simple to learn in seconds and share by link. The loop is grow, take risks, get eaten, and rejoin at once. Size is both power and weakness: big players are strong but slow. Leaderboards give a reason to keep going, and the arena has to feel busy even with few players, which is why many .io games fill empty slots with bots.
| Design choice | What to decide |
|---|---|
| Dimension | 2D top-down is the classic. 3D works for blob or ship arenas. |
| Growth rule | What players eat and how much each bite adds. |
| Size trade-off | How speed or turning drops as players grow. |
| Multiplayer | Online room friends join by link, and bots for empty slots. |
| Respawn | Instant rejoin after being eaten, with a short safe window. |
Build the arena step by step
Start single-player with bots
Ask for the arena, food pellets, and a few bots that wander, eat, and chase. Get the growth and eating rules right while you test alone.
Balance size against speed
Make larger players slower, and add one escape tool for small players, such as a short speed boost or a split. Play a few rounds and adjust one rule at a time.
Add online rooms
Ask for online multiplayer where a host creates a room and friends join from the invite link. Keep the bots so the arena feels alive when only two people are in it.
Add a leaderboard and quick respawn
Show the biggest players on screen, and put players back in the arena a second after they are eaten. That loop is what keeps .io sessions going.
Example prompt: Make an original 2D .io arena where players control glowing jellyfish in a deep-sea trench. Eat plankton to grow; any jellyfish more than 20% bigger can eat a smaller one. Bigger jellyfish move slower, and a short ink dash helps small ones escape. Add online multiplayer rooms friends join from an invite link, bots to fill empty slots, a top-five leaderboard, and instant respawn. Use original art and music.
Publish and share
Chatforce publishes the game at a shareable browser URL. Friends can play without an account, the game runs in desktop and phone browsers, and published games have no watermark. You own the work. For an .io game the link is the whole onboarding: a friend taps it and is in the arena. Read how to make a multiplayer game without coding for more on online rooms.
Frequently asked questions
Can I make a direct copy of Agar.io?
Use Agar.io as a reference for an eat-and-grow online arena. Make original names, characters, art, music, levels, and story. Chatforce games should not reuse another game's characters, logos, or assets.
Can Chatforce make real online multiplayer?
Yes. Online multiplayer works in both 2D and 3D games. Players join the same room from a shared link, and friends can play without an account.
Should I make this game in 2D or 3D?
2D top-down keeps everyone visible and is the classic .io look. 3D works too, as Blob Arena shows. You pick 2D or 3D when you create the game in Chatforce, and that choice cannot be switched later.
Related pages: Multiplayer game maker · Make a multiplayer game without coding · Battle royale game maker · Arcade game maker · Browser game maker · How to make a game like Among Us · 2D game maker · 3D game maker · Games made with Chatforce