Quick answer: Format dates, numbers, and currency with the player's locale, use locale-aware formatting APIs, and show currency in the player's region appropriately.

Wrong date and currency formatting is hardcoded formats. Locale-aware formatting fixes it. Here is how.

How to fix it

1. Format with the player's locale

Use locale-aware formatting for dates, times, and numbers so they match the player's regional conventions — day/month order, decimal and thousands separators — rather than a single hardcoded format.

2. Use locale-aware APIs

Use the platform's culture or locale formatting APIs rather than building strings manually, so the format follows the locale's rules. Manual formatting bakes in one region's conventions.

3. Localize currency

Display prices with the correct currency symbol and format for the region, and ideally in the player's local currency. A price shown in the wrong currency or format confuses players about what they are paying.

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.