Quick answer: Yes, a QA checklist helps even solo, it ensures you verify the important things before each release instead of relying on memory; but pair it with production crash capture for what it misses.
A QA checklist makes pre-release testing systematic. Here is whether you need one.
Why It Helps: Don't Rely on Memory
A QA checklist helps because relying on memory to test everything before a release is unreliable, you forget things, especially under deadline pressure, and a forgotten check is how a known-type bug ships. A checklist ensures you systematically verify the important things (core loop, save/load, key features, platforms) every release.
Bugnet complements a QA checklist by catching what it cannot cover: a checklist verifies the things you listed, and Bugnet captures the crashes from real players that no checklist anticipated, so the two together cover both the known checks and the unknown issues.
Even Solo Developers Benefit
Even a solo developer benefits from a QA checklist: working alone, you are especially prone to skipping checks (no one else to catch the omission) and to blind spots about your own game. A checklist imposes the discipline of verifying the important things every release, which is easy to skip when you are the only one accountable.
Bugnet backs up a solo developer's checklist with a production safety net: since a solo developer's testing is necessarily limited, Bugnet captures the issues that get past a one-person QA process, so the inevitable gaps in solo testing are caught in production rather than living in bad reviews.
The Limit: Checklists Cover the Known
A QA checklist has a hard limit: it only covers what you thought to put on it, the known things to verify, while many issues are unanticipated (device-specific crashes, edge cases, problems on hardware you do not have). A checklist reduces known-type escapes but cannot catch what it does not list.
Bugnet covers what the checklist cannot: it captures the unanticipated crashes from real players on real devices, with full context, so the issues no checklist would have listed are caught in production, completing the coverage a QA checklist starts but cannot finish alone.
Yes, a QA checklist helps even solo, it ensures you verify the important things every release instead of relying on memory; but it only covers the known, so pair it with production crash capture for the rest.