Oni Alternatives

Build and debug modern web and cloud applications, by Microsoft

RimWorld - A sci-fi colony sim driven by an intelligent AI storyteller.

Capable and Ergonomic IDE for JVM

Python & Django IDE with intelligent code completion, on-the-fly error checking, quick-fixes, and much more...

Android development environment based on IntelliJ IDEA

Xcode 4 is the new version of Apple’s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.

Tropico is an Addictive, Strategy, Construction and Management, City Building, Sandbox and Single-player Simulation developed by PopTop Software.

Vim's rebirth for the 21st century

Build custom HTTP bots with minimal knowledge.

Highly configurable text editor built to enable efficient text editing

At GitHub, we’re building the text editor we’ve always wanted: hackable to the core, but approachable on the first day without ever touching a config file. We can’t wait to see what you build with it.

Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.