Frequently Asked Questions¶
Straight answers - so you can decide if Hot Patch fits your Play Mode loop, then get back to shipping feel.
What is Hot Patch?
Hot Patch is a Unity Editor tool that lets you edit C# during Play Mode and feel the change immediately - without a domain reload. Save in your IDE; the new logic runs the next time that code is called. Your scene state stays put.
Who is Hot Patch for?
Unity developers who lose time to compile waits and lost Play Mode state - tuning gameplay, debugging rare situations, or prototyping systems that are painful to set up again after every reload.
Do I need to change my project code?
No. Import, accept the license, press Start, enter Play Mode. No required attributes or build pipeline changes to begin iterating.
Does it work outside Play Mode?
No. Hot Patch owns the Play Mode loop. Outside Play Mode, use Unity’s normal compilation.
Will it work in my shipped game?
No. It is an Editor development tool - not for player builds or production runtime.
Does it need the internet?
No. Compilation is local. Internet is only for optional updates or opening online docs.
Which editors work?
Any editor that saves .cs files to disk: Rider, Visual Studio, VS Code, Cursor, and others. Hot Patch reacts to disk writes, not unsaved buffers.
Why didn’t my change appear?
Changes apply on the next invocation. Editing Start won’t re-fire Start. Save the file, confirm Hot Patch is started and you are in Play Mode, then trigger the code again. Check the Home log.
What happens to my game state?
It stays. No domain reload means statics, scene objects, and timers keep running while you iterate - that is the product.
What happens when I exit Play Mode?
Runtime patches clear. By default Hot Patch can request a Unity recompile on exit so Edit Mode matches disk. You can turn that off in Settings.
Can I mix it with other hot-reload tools?
Not recommended. Competing tools fighting over auto-refresh or the same methods will conflict. Use one solution at a time.
Pricing?
Hot Patch is sold on the Unity Asset Store. See the store listing for current pricing and license terms.
Help or bug reports?
Use the Issue Tracker with Unity version, Hot Patch version, steps, and Home log lines.