The Psychology of Playtesting: Informed Design Iteration

Here’s a blog post draft focused on the psychology of playtesting, designed for indie game developers and students:

The Psychology of Playtesting: Informed Design Iteration

“Okay, so I really like the idea of the game,” the player said, pausing. “But… I’m not sure what I’m supposed to do.”

That was Anna, one of my first playtesters for my roguelike dungeon crawler, Crypt Crawlers. I was ecstatic to get her feedback, but her vague comment left me stumped. I’d spent months on this game, and I assumed everything was intuitive. Boy, was I wrong.

That initial playtest session taught me a crucial lesson: player opinions are only part of the story. The real gold lies in observing their behavior.

The Problem with Just Listening

It’s tempting to take player feedback at face value. “The game is too hard!” “The UI is confusing!” But simply reacting to these statements is a recipe for disaster.

Players often struggle to articulate why they feel a certain way. They might think they want a specific change, but that’s based on their flawed understanding of the underlying design.

Instead of just listening, watch. What are players actually doing? Where are they getting stuck? What unspoken frustrations are visible in their actions? This is where true insight comes from.

Structuring Effective Playtests

A haphazard playtest is worse than no playtest at all. To get meaningful data, you need a structured approach:

• Define Clear Goals: What specific aspect of the game are you testing? Combat? The tutorial? Level design? Focus is key.
• Choose the Right Testers: Target players who represent your intended audience. Don’t just grab your friends!
• Prepare Scenarios: Give testers specific tasks to complete. “Explore the first level and defeat the boss” is far more useful than “Just play the game.”
• Create a Comfortable Environment: Make testers feel at ease. Explain the process, emphasize that you’re testing the game, not them, and encourage honest feedback.

Psychological Biases to Avoid

Playtesting is vulnerable to biases. Be aware of these common pitfalls:

• Confirmation Bias: Seeking out feedback that confirms your existing beliefs and ignoring contradictory evidence.
• Observer Effect: Players behaving differently because they know they’re being watched. Minimize your presence and avoid interrupting unless necessary.
• Leading Questions: Phrasing questions that suggest a desired answer. “Did you enjoy the challenging combat?” is terrible. “How did you find the combat experience?” is better.

Case Study: From Frustration to Feature

Let’s revisit Anna’s playtest of Crypt Crawlers. She said she didn’t know what to do. My initial assumption was that the tutorial was unclear.

However, watching her play revealed a different story. She understood the tutorial, but she was overwhelmed by the number of choices. The game bombarded her with items, abilities, and enemy types right from the start.

Her actions (hesitantly clicking around, frequently opening and closing menus) spoke louder than her words.

The Art of Asking Questions

After observing Anna’s confusion, I needed to dig deeper. Instead of asking leading questions about the tutorial, I tried:

• “What are you thinking about right now?”
• “What’s your biggest concern at this point?”
• “What are you trying to accomplish?”

These open-ended questions prompted her to elaborate on her experience, revealing that she felt paralyzed by the sheer number of options.

Actionable Steps for Informed Iteration

Based on Anna’s playtest, I made a crucial design change: I introduced game mechanics and elements gradually. The first level focused on basic movement and combat, with new items and abilities unlocking later on.

This wasn’t a simple usability fix. It was a core design flaw that was masked by my own familiarity with the game. The playtest revealed that I had to scale back the initial complexity.

Tracking Progress: The Power of Documentation

Playtesting is an iterative process. Changes can have ripple effects throughout your game. That’s why documentation is essential. Record everything:

• Playtest dates and tester profiles.
• Key observations and player quotes.
• Design changes based on feedback.
• The impact of those changes in subsequent playtests.

Consistent and organized records make all the difference when revisiting design decisions, and a great way to maintain that consistency is to use a journaling tool to keep notes, try ours here for free to improve your workflow today!

Using a “game dev journal” or “game development log” allows you to track your progress over time. It helps you remember why you made certain decisions and provides valuable context when revisiting old features. Don’t just code; reflect. Your game will thank you for it.