Open Net Battle (ONB for short) is a moddable, online, 2D game engine and tools. "Run your own network" with others or create your own content and stories to share.

It is maintained by talented people.

DOWNLOADS

Windows Version 2.1.5 ⭐ | See CHANGELOG | Last updated 05/18/2026

All other versions 2.1.4. Please wait for the other builds!

Item	Win	Ubuntu	Bazzite	Raspi	Droid
Client	⭐	✔️	✔️	⏳	⏳
Server	✔️	✔️	✔️	✔️	❌
WebLauncher	✔️	⏳	❌	❌	❌
Debugger	2.5 only	2.5 only	❌	❌	❌

Tip

First time? Watch this guide by ShaDisNX255:

FEATURES

Explore

Build Folders

Upgrade Stats

Meet Characters

Make Friends

Custom Battles

Tip

Looking for mod resources? Visit RES > MODS.