Question 1

What is playtesting, and how is it different from QA?

Accepted Answer

**QA looks for things that are broken; playtesting looks for things that are working as designed and still failing.** They are different disciplines answering different questions, and conflating them is a common and expensive mistake.

**Quality assurance.** Finds defects against a specification: crashes, visual errors, broken logic, performance problems, platform certification failures, and regressions after changes. Testers write reproducible bug reports, and the standard is objective — it either works or it does not.

**Playtesting.** Finds **experience problems**: players who are confused, bored, frustrated, cheated, or who never discover a feature that works perfectly. Nothing is broken; the design is not landing.

**What playtesting reveals that nothing else does:**

**Where players get lost**, despite the route being clear to everyone who built it.

**Which mechanics go unused**, because players never realised they existed.

**Difficulty spikes**, which designers cannot feel because they are expert at their own game.

**Mistaken assumptions**, where players confidently believe something untrue about the systems.

**Where enjoyment drops**, which is the hardest thing to see from inside.

**Why the developer cannot substitute for it.** The team has **irreversible knowledge** of the game. They cannot un-know where the door is, and this blindness is complete rather than partial — it is the single strongest argument for testing with strangers.

**How it is actually run:**

**Observe silently.** Intervening destroys the data, and the instinct to help is the hardest thing to suppress.

**Give a task, not instructions.**

**Watch behaviour, not opinions.** **What players say they want is unreliable; what they do is not.** The frequently quoted principle is that players are excellent at identifying problems and poor at proposing solutions.

**Test with the right people**, including those unfamiliar with the genre.

**Test early and repeatedly**, on rough builds.

**Related methods:** analytics and telemetry at scale, focus testing, surveys, and soft launches — which are live playtests with real money attached.

Question 2

If games are tested, why do they still ship with bugs?

Accepted Answer

Because games are among the most complex consumer software produced, the number of possible states is effectively unbounded, and testing has to stop at some point that is decided commercially rather

Question 3

What is dynamic difficulty adjustment?

Accepted Answer

A system that changes a game's difficulty in response to how you are playing, usually without telling you — and it is far more widespread than most players realise. What it adjusts. Enemy health,

Question 4

How does skill-based matchmaking work, and why is it controversial?

Accepted Answer

Skill-based matchmaking (SBMM) places players in matches against opponents of similar ability, using a hidden rating derived from performance. How the rating works. Most systems descend from Elo or

Question 5

How do developers test games across so many devices?

Accepted Answer

Through a combination of device labs, automation, telemetry and platform certification — and it remains one of the hardest problems in the industry, particularly on mobile where the hardware space is

Question 6

What is a game jam?

Accepted Answer

A game jam is an event where people make a complete game in a severely limited time — typically 48 hours to a week — usually around a theme announced at the start. How one works. The theme is

Question 7

What data do games collect about players?

Accepted Answer

Considerably more than most players realise, and for reasons that range from legitimate engineering to targeted monetisation — with the distinction rarely visible from inside the game. Technical and

Related Questions