A Co-op Game With and Without Error Tracking

Plenty of games ship without error tracking, and their developers spend the following months confused about why retention is poor and reviews mention failures they have never seen. The reason is simple and brutal: without error tracking, the problems players experience on your co-op game are invisible to you. You cannot fix what you cannot see, and you cannot even gauge how big the problem is. This post makes the case that error tracking is not a nice-to-have, it is foundational, and walks through why it matters so much, what it captures, and what changes once you have it.

The core of the argument

Strip away the details and the case for error tracking on a co-op game comes down to a single asymmetry. The failures that hurt you most are the ones you cannot see, because the players hitting them leave without a word. Tracking makes those failures visible; everything else, the prioritization, the faster fixes, the protected reviews, follows from that one change.

That is why this is not really a debate about tooling preferences. It is a choice between knowing and guessing. Once co-op game developers have seen the gap between the failures they assumed were happening and the ones actually happening, the question stops being whether error tracking is worth it and becomes how they ever shipped without it.

The default state is blindness

Picture running any other piece of software with no idea when it failed. That is the default condition of a co-op game without error tracking. Players hit exceptions, sessions die, and you learn about almost none of it. Your own testing covers a thin slice of the hardware and situations your players actually inhabit, so the failures that matter most, the ones on devices you do not own and in states you never tried, are exactly the ones you never witness.

This blindness is not a small inconvenience, it is a structural handicap. Every decision you make about where to spend your limited time is uninformed, because you do not know what is breaking. You might polish a feature while an error on the opening level quietly churns a third of your new players. Error tracking removes the blindfold; it does not fix your bugs, but it shows you what they are, where they strike, and how often, which is the prerequisite for every sensible call about stability you will ever make.

Your players will not tell you

The hope that players will report what breaks is one of the most expensive assumptions in game development. In practice only a tiny, self-selected minority ever speak up, and they are your most patient and technical players, not the casual majority who simply leave. So the trickle of reports you do receive badly understates the real failure rate and skews toward the people least representative of your audience.

Automatic capture flips the equation. Instead of relying on the goodwill and persistence of a few, you record every failure the moment it happens, turning the silent majority into data. The errors that hurt you most are precisely the ones nobody reports, and those are exactly the ones automatic tracking surfaces. It converts invisible churn into a ranked, fixable list.

A worklist ranked by how many players each bug hurts

With error tracking in place, you stop guessing which bugs to chase. Identical failures fold into a single issue with a count, so you can see at a glance that one error hit four hundred players this week while another hit three. Your effort flows automatically to the highest-impact problems, instead of to whichever bug happened to be reported most loudly or annoyed you most recently.

The payoff is that your limited time produces outsized results. Fix the top three signatures and you may resolve the majority of the failures your players are hitting, because error frequency is almost always lopsided. Without ranking you would have no way to know that, and you would spread your effort evenly across bugs of wildly different importance.

Every update is a chance to break something new

Every update you ship is a chance to break something that used to work. Without error tracking, you find out weeks later through a slow drip of reviews and forum posts, long after the bad build has churned its share of players. With it, a new error signature appearing right after a release is a loud, immediate signal that this build introduced a regression.

This is what lets you ship often without fear. You release, you watch your top signatures for an hour, and either nothing changes or a new one jumps out and you act. Frequent updates stop being a gamble and become a controlled, observable process, which is exactly what a live game needs to stay healthy over time.

The best time to add it was at the start

The most common regret developers express about error tracking is not adding it sooner. The instinct is to treat it as something to bolt on later, once the co-op game is more finished, but that gets the timing exactly backwards. The early, unstable period is when failures are most frequent and most informative, and it is precisely when you most want the data to build a stable foundation.

Think of error tracking the way you think of source control: as basic infrastructure you would not seriously build without. It is not glamorous, players never see it directly, and it adds no feature to your game. What it adds is sight, the ability to know what is actually happening to your players instead of guessing. For any game you intend to maintain and stake your reputation on, that sight is not optional, and the cost of adding it early is trivially small.

How Bugnet handles this

This is exactly the workflow Bugnet is built for. Drop the SDK into your co-op game and every unhandled error is captured automatically, complete with stack trace, device, OS, and the recent actions that led up to it, so nothing breaks for a player without leaving you a trail. An in-game report button sits alongside it for the softer issues, the soft locks and confusing moments, that automatic capture alone would miss.

Occurrence grouping then turns the raw stream into a worklist, folding identical failures into one issue with a count so your worst problems are obvious and your time goes where it matters most. You can filter by device or any custom attribute to isolate configuration-specific bugs, and everything lands in one dashboard alongside player reports, so automatic and human-reported issues share a single triage flow. For a small studio, it is visibility you simply did not have before, with very little setup.

The bottom line

Error tracking will not write your fixes or design your game. What it adds is sight, the ability to know what is actually happening to the players on your co-op game instead of guessing. For any game you intend to maintain, grow, and stake your reputation on, that sight is not optional. The cost of adding it is small, and the cost of shipping without it is paid quietly, in players you never knew you lost. Add it early, work from the data, and let the failures that used to be invisible become a simple list you work down.

Silence is not stability. Add error tracking and turn the failures your players never report into a list you can actually fix.