How do I know if my game crashes on startup?

Look for the unmistakable signs that players can't get in. The most visible is reviews and complaints saying the game won't start, crashes on launch, or won't open, a startup crash locks players out completely, so it generates direct, frustrated complaints like 'won't even start' or 'crashes immediately.' Players also describe a black screen on launch, the game crashing immediately, or closing right after opening, all pointing at a failure in the boot or initialization path. And startup crashes often concentrate right after install (the first launch) or right after an update (if the update broke startup). To diagnose, capture crashes from the field with device and version context: this shows you the startup crashes themselves (where in the boot path they occur, on what devices and builds), so you can fix them, and per-version tracking reveals whether an update introduced a startup-crash regression. If you're seeing 'won't start' reviews, black-screen or immediate-crash reports, or a wave of startup complaints after install or an update, your game crashes on startup, and capturing the crashes is how you go from knowing it's happening (the reviews) to fixing it (the captured cause).

Why does my game crash on startup for some players but not me?

Because startup hits the widest range of real-world conditions, and your dev environment is just one of them. A startup crash is frequently triggered by something specific to the player's situation that doesn't occur on your machine: a corrupted or missing save or config that the boot path tries to load, an OS version or permission quirk, a missing device capability, or a device-specific condition. Startup is also the least forgiving code path, often assuming a clean, valid state (a present save, expected resources, certain capabilities), so any deviation, common across the huge range of player devices and conditions, crashes it, while on your machine everything is present and configured as the game expects. This is why startup crashes can hit many players while never appearing for you: the conditions that trigger them (bad data, specific OS versions, particular devices) exist in the field but not on your dev setup. It's also why startup crashes from an update are dangerous, the update changes the boot path under conditions you didn't test, locking out players who were fine before. To see and fix startup crashes you can't reproduce, capture them from the field with device, OS, and version context, which records the conditions (device, OS, what the game was doing at startup) that triggered the crash, so you can see the pattern (does it cluster on a device, an OS version, a state?) and fix the boot path's assumption that's failing. The device and version context usually points at the cause (a device-specific issue, an OS difference, a save/config problem). So your game crashes on startup for some players but not you because startup hits the widest range of conditions and your machine is just one clean case, and the way to find and fix the startup crashes you can't reproduce is to capture them from the field with the context that reveals the conditions triggering them, then harden the boot path against those conditions (handling bad data, OS differences, missing capabilities gracefully rather than crashing).

Why are startup crashes especially bad?

Because the player never even gets into the game, so a startup crash costs you the player entirely, not just a bad moment, and it generates immediate, angry complaints. A crash mid-session is frustrating but the player has at least experienced the game and may continue; a startup crash means they launch, it fails, and they have nothing, no gameplay, no reason to retry, and often a one-star review citing 'won't even start' or 'crashes immediately.' It also tends to affect everyone on a given device or in a given condition consistently (not intermittently), so an affected player is locked out until you fix it, they can't work around it by retrying. This makes startup crashes uniquely damaging: each one is a fully lost player who experienced nothing but failure, and the complaints are direct and harsh because the player feels the game is completely broken. Startup crashes from an update are especially bad, they lock out players who were previously fine, turning an update into a disaster for affected players, and they hit fast (as players launch the new build). Because of this, startup crashes deserve disproportionate priority: they're high-severity (total loss of access), they generate the most damaging reviews ('won't start'), and they often hit consistently (so affected players stay locked out). The boot path is the one code path every player must pass through, so a crash there has maximum reach among the players hitting the triggering condition. The implication is to protect the startup path carefully (harden it against bad data, OS differences, and missing capabilities so it fails gracefully rather than crashing), test the first launch on real varied devices (where startup crashes hide), and capture startup crashes from the field (so you catch and fix them fast, before they lock out more players). So startup crashes are especially bad because they cost you the player entirely (total loss of access, nothing experienced), generate the most damaging complaints, and often hit consistently, making them high-priority to prevent, detect, and fix, since each one is a fully lost player and a harsh review.

Signs Your Game Crashes on Startup

Quick answer: Watch for reviews saying the game won't start, reports of a black screen or immediate crash, crashes in the first moments of a session, and complaints right after install or an update. A startup crash locks players out entirely.

A startup crash is the worst kind, the player never gets into the game, so it costs you the player entirely and surfaces fast in angry reviews. Here are the signs your game crashes on startup.

Reviews Saying the Game Won't Start

The most visible sign is reviews and complaints saying the game won't start, crashes on launch, or won't open. A startup crash locks the player out completely, so it generates direct, frustrated complaints, players will say 'won't even start' or 'crashes immediately,' which is an unambiguous sign of a startup crash.

Bugnet captures crashes with version and device context, so you can see startup crashes and which builds/devices they hit. Reviews saying the game won't start are the clearest sign, and capturing the startup crashes themselves (with device and version context) is how you diagnose them, since the reviews tell you it's happening but not why or on what.

Reports of a Black Screen or Immediate Crash

Players experiencing a startup crash often describe a black screen on launch, the game crashing immediately, or it closing right after opening. These descriptions point at a failure in the boot or initialization path, the game failing before it gets the player into gameplay, which is a startup crash by another name.

Bugnet captures crashes with breadcrumbs, so you can see the game failing in the startup path. Reports of a black screen or immediate crash are signs of a startup or initialization failure, and the captured context (where in startup it crashed, on what device) is what turns the vague description into a diagnosable cause.

Crashes Concentrated Right After Install or an Update

Startup crashes often concentrate right after install (the first launch) or right after an update (if the update broke startup), since those are when the boot path runs under new conditions. A wave of crashes or complaints right after release, especially 'won't start,' points at a startup crash, possibly a regression in the boot path.

Bugnet tracks crashes per version, so a wave of startup crashes after an update is identifiable. Startup crashes concentrated after install or an update are a sign, and per-version tracking reveals whether an update introduced the startup crash, a common and serious regression, since a startup crash from an update locks out players who were fine before.

Watch for reviews saying the game won't start, reports of a black screen or immediate crash, crashes in the first moments of a session, and complaints right after install or an update. A startup crash locks players out entirely.