Quick answer: Move the data out of code into assets or files designers can edit, load it at runtime, and reload it without a rebuild so iteration is independent of compilation.
Every time a designer wants to tweak a number, a programmer edits a constant and rebuilds. Data baked into code blocks fast iteration. Externalize it so designers change values without touching code.
How to fix it
1. Externalize the data
Move tuning values out of source into a data asset, spreadsheet, or config file that designers can open and edit without a development environment.
2. Load it at runtime
Read the external data when the game starts (or on demand) so the values used are whatever is currently in the file, not what was compiled in.
3. Enable live reload in editor
Add an editor-only reload so designers can re-import or re-read the data and see changes without a full rebuild, tightening the iteration loop.
Catching the ones you can't reproduce
The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.
Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.
This is where a tool like Bugnet earns its place. Its SDK captures every error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.
The errors you never hear about are the ones quietly costing you players. Visibility turns them into a worklist.