UnityREPL is a “Read, Eval, Print, Loop” tool for Unity3D, based on Miguel’s CSharpRepl.

In short, it gives you a window that lets you type in and execute C# code on the fly.

Grab the .unitypackage here, or see the readme in the source repo for instructions on installing it via git.

Using It As a Calculator…

UnityREPL can be used as an ad-hoc calculator – with variables!

The Code Editor…

The code editor supports line and block indent/unindent via tab and shift-tab.

Variables…

UnityREPL can keep an eye on variables, and carry them across commands.

Reflection…

UnityREPL can help you explore types interactively…

Real-World Example…

UnityREPL can take the tedium out of managing assets in a game…