How do I prevent soft-locks in my game?

Design for recovery so the player is never trapped, and test the unusual paths that create soft-locks. Avoid states the player can't escape: provide escape options (a way back, a reset, a recovery path) so the player always has a way out, and avoid creating states with no valid exit, since a soft-lock is fundamentally a stuck state with no escape, and the lack of a way out is what makes it a soft-lock rather than a temporary obstacle. Test the edge cases and unusual sequences that create soft-locks, including playing in ways you didn't intend, doing things in unexpected orders and combinations, since soft-locks usually arise from these and hide in the paths your normal playtesting doesn't take. And capture where players get stuck from the field via crashes, errors, or behavioral signals around the soft-lock, since soft-locks depend on player behavior you can't fully anticipate, so seeing players halt at a specific state lets you find the soft-lock and add the escape or fix. A soft-lock traps the player in a state they can't progress from, often without a crash, so designing for recovery, testing edge cases, and watching the field prevent it.

What is a soft-lock in a game?

A soft-lock is when the player gets trapped in a state they can't progress from or escape, without the game crashing, they're stuck, unable to advance or get out, but the game is still running normally otherwise. This distinguishes it from a hard-lock or crash (where the game freezes or terminates): in a soft-lock the game works fine, the player just has no valid way to continue. Examples include getting into an area with no exit, using up a resource needed to progress with no way to get more, an event or quest that can't be completed and can't be reset, or any situation where the only paths forward are unavailable and there's no way back. Soft-locks typically arise from edge cases and unusual sequences, doing things in an unexpected order, in combinations the designer didn't anticipate, that lead to a state with no valid exit. They're damaging because, like a progression blocker, they end the player's ability to play meaningfully, they're stuck, so they quit, often losing progress and leaving a bad review, but they're also insidious because there's no crash to signal something went wrong, the game just quietly traps the player. This is why preventing soft-locks centers on ensuring there's always a way out of any state (escape options, recovery paths, resets) and on testing the unusual paths where soft-locks hide, plus capturing where players get stuck from the field since soft-locks depend on player behavior you can't fully anticipate.

How are soft-locks different from crashes?

Both stop the player from continuing, but they're technically and experientially different. A crash is when the game terminates or fails, an error, exception, or fatal condition stops it, usually producing a stack trace, and the player is kicked out (they can relaunch, though they may lose progress). A soft-lock is when the game keeps running normally but the player is trapped in a state they can't progress from or escape, there's no crash, no error, the game works fine, the player just has no valid way to continue. This difference matters for prevention and detection. Crashes are caused by errors and invalid operations and are detected via crash capture (the stack trace points at the failure); soft-locks are caused by game-logic and design issues, states with no valid exit, usually reached through edge cases and unusual sequences, and they don't produce a crash to capture, so detecting them relies on noticing players getting stuck (behavioral signals, players halting at a specific point, or reports) rather than on a crash report. Preventing crashes means error handling and defensive coding; preventing soft-locks means designing for recovery (always providing a way out of any state) and testing the unusual paths where players can get trapped. From the player's side, both are bad, a soft-lock can be even more frustrating because the game seems fine yet they're stuck with no error to explain it, but they require different approaches to prevent and find, which is why it helps to think of them as distinct problems even though both end the player's progress.

How to Prevent Soft-Locks in Your Game

Quick answer: Avoid states the player can't escape by providing recovery and escape options, test the edge cases that create soft-locks, and capture where players get stuck from the field. A soft-lock traps the player without a crash.

A soft-lock, the player trapped in a state they can't progress from or escape, without a crash, ends their ability to play just as surely as a game-breaking bug. Preventing soft-locks takes designing for recovery. Here's how to prevent soft-locks in your game.

Avoid States the Player Can't Escape

A soft-lock is fundamentally a state with no way out, the player is stuck and can't progress or return. So design to avoid these: provide escape options (a way back, a reset, a recovery path) so the player is never trapped, and avoid creating states that have no valid exit, since the lack of an escape is what makes a stuck state a soft-lock.

Bugnet captures crashes and context, so soft-lock states are identifiable. Avoiding states the player can't escape prevents soft-locks at the design level, by ensuring there's always a way out of any state, which is exactly what a soft-lock lacks.

Test the Edge Cases and Unusual Sequences That Create Soft-Locks

Soft-locks usually come from edge cases and unusual sequences, doing things in an unexpected order, in an unanticipated combination, that lead to a stuck state. So test these edge cases and unusual sequences, including playing in ways you didn't intend, since soft-locks hide in the paths your normal playtesting doesn't take.

Bugnet captures context and breadcrumbs, so the sequences leading to soft-locks are identifiable. Testing the edge cases and unusual sequences prevents the soft-locks that come from players doing things in orders and combinations you didn't anticipate, which is how most soft-locks arise.

Capture Where Players Get Stuck From the Field

Soft-locks depend on player behavior you can't fully anticipate, so capture where players get stuck from the field, via crashes, errors, or behavioral signals around the soft-lock. Seeing players halt at a specific state lets you find the soft-lock and add the escape or fix that prevents it.

Bugnet captures crashes with breadcrumbs, so you can see the states where players get stuck. So prevent soft-locks in your game by avoiding states the player can't escape, testing the edge cases that create them, and capturing where players get stuck, designing for recovery so players are never trapped in a state they can't progress from.

Avoid states the player can't escape by providing recovery and escape options, test the edge cases that create soft-locks, and capture where players get stuck from the field. A soft-lock traps the player without a crash.