What's a Good MTTR for Game Bugs?

“What's a Good MTTR for Game Bugs?” is a fair question, and the honest answer is less about a magic number than about a target you defend and a trend you watch. Faster is better; the goal is hours to days for high-impact crashes, which good context and grouping enable. What matters is whether the number is high, stable, and improving — and whether the individual failures behind it are getting fixed. This guide covers how to think about mean time to resolution and act on it: measure the gap between first-seen and fixed, and shrink it with better context.

How to think about mean time to resolution

The useful way to think about mean time to resolution is as a target and a trend rather than an absolute. Faster is better; the goal is hours to days for high-impact crashes, which good context and grouping enable. A single number in isolation tells you little; the same number rising or falling across your builds tells you almost everything, because it reflects whether your releases are making the game more or less stable.

It is also worth remembering that an average can hide a serious problem. A healthy-looking overall mean time to resolution can still contain one signature hammering a slice of your players, which is why you pair the headline number with a ranked list of individual failures.

Why “it works on my machine” is a trap

Your development machine is the single least representative device your game will ever run on. It is the one configuration guaranteed to work, because you built and tested the game on it. Your players live out on the long tail of GPUs, drivers, operating-system versions, resolutions, and background software, and that long tail is exactly where the failures you never reproduce are hiding.

This is why local testing, however thorough, has a hard ceiling. You cannot own every device, and you cannot imagine every combination. Field data closes that gap by letting the failures come to you with the configuration attached, so a crash that only happens on one driver version stops being a mystery and becomes a one-line filter.

Turning a pile of crashes into a ranked worklist

Raw crash data is overwhelming if every occurrence is its own line. The trick is grouping: identical failures, fingerprinted by their stack trace, collapse into one issue with a count. Suddenly the question “what should I fix first?” answers itself, because the bug hitting the most players sits at the top with the biggest number next to it.

That ordering is what makes a small team effective. You are never going to fix everything, but you do not have to. Fixing the top few signatures usually removes the large majority of real-world failures, and prioritising by frequency means your limited hours always go to the bug that matters most right now.

What good context actually looks like

The difference between a bug you fix in five minutes and one you chase for a week is almost always context. A bare error message tells you something went wrong; a useful report tells you where, on what, after what sequence of actions, in which build. Stack trace, device model, OS version, available memory, and the breadcrumb trail of recent events are the fields that turn guessing into reading.

When that context is captured automatically and consistently, reproduction stops being the bottleneck. You can often see the cause directly in the trace, and when you cannot, the breadcrumbs show you the exact path to walk to reproduce it yourself.

Setting and defending a target

To act on mean time to resolution, measure the gap between first-seen and fixed, and shrink it with better context. Pick a target you are willing to defend, measure it per build, and treat a drop as a signal to investigate rather than a number to explain away. That turns mean time to resolution from a vanity figure into a release gate that actually protects your players.

Underneath it all is the same foundation: capture every failure with full context, group identical ones so you can rank by impact, and tie each to its build so you can see which release moved the number. With that, mean time to resolution stops being an abstract benchmark and becomes something you steer.

This is where a tool like Bugnet earns its place. Its SDK captures every failure automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds identical failures into one grouped issue with an occurrence count, and ties each to the build it happened on. The result is that the abstract idea above stops being theory and becomes a ranked list you work down — the worst problem first, verified fixed when its signature disappears from the next release.

Guessing is the slowest way to debug. Real reports from real devices turn a mystery into a short, ordered to-do list.