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What you can edit

Most day-to-day gameplay edits work: change a method, save the file, and the next time that method runs it uses the new logic.

Method bodies

Edit anything inside a method that has a normal body ({ … } or =>).

Works on:

  • MonoBehaviour scripts
  • Regular and static classes
  • Structs

Modern C# inside the method is fine - switch expressions, pattern matching, null-conditionals, local functions, and similar.

Abstract, extern, and empty partial methods are skipped (there is nothing to patch).

Properties and indexers

You can patch:

  • Property get / set accessors that have a body
  • Auto-properties once you expand them to a full accessor
  • Indexers with bodied accessors

Operators

User-defined operators with a method body can be patched the same way as normal methods.

Generics

Generic methods and generic types are supported.

If a generic method never runs from your loaded game code, Hot Patch may not hook it yet. Call it once, edit a caller, or press Recompile in the Hot Patch window.

New fields (limited)

You can add a new instance field during Play Mode and use it inside patched methods.

This is not full Inspector hot-reload:

  • Existing objects do not re-run field initializers
  • New static fields are not supported
  • The Inspector will not fully track hot-added fields

See Limitations → Fields.

Usings and nullables

using directives in the file are respected. Nullable reference and value types are supported.