✦ primoh.coGame design course

Research and sources

The course draws on game research, developer accounts, and published rules. Here’s what each can tell us.

How to read the studies

Documented mechanics
Official rules, manuals, product descriptions, and first-hand developer accounts establish what a particular game or edition does. They do not establish how every player feels about it.
Research findings
We describe the study or model and its limits. An association between enjoyment and perceived competence is not evidence that adding experience points causes enjoyment.
Design interpretations
The loop maps, promises, tradeoffs, and analysis sections are our explanations to investigate. They are not controlled studies of commercial success.
Teaching exercises
The treasure game, suggested tests, and timeboxes are practical exercises. Three short playtests can reveal problems; they cannot establish population-wide preferences or clean causal effects.

Further reading

MDA: A Formal Approach to Game Design and Game Research

Robin Hunicke, Marc LeBlanc & Robert Zubek · 2004 · Design framework

Connects rules, behavior during play, and emotional experience. Useful for generating and reviewing design hypotheses; it does not establish a universal formula for enjoyment.

The Motivational Pull of Video Games

Richard Ryan, C. Scott Rigby & Andrew Przybylski · 2006 · Empirical research

Four studies investigate autonomy, competence, and relatedness in relation to enjoyment and motivation. Associations support questions about agency and learning; adding a feature is not guaranteed to satisfy a need.

GameFlow: A Model for Evaluating Player Enjoyment in Games

Penelope Sweetser & Peta Wyeth · 2005 · Evaluation model

Organizes criteria including challenge, skills, clear goals, feedback, and social interaction. Its initial evaluation used expert reviews of two strategy games; use it as a lens, not a rule for every genre.

Xbox Accessibility Guidelines

Microsoft · living guidance · Practitioner guidelines

Practical guidance on input, text, audio, visual cues, difficulty, and other barriers. Accessibility belongs in the initial design and playtests, not only the final polish pass.

Valve developer publications

Valve · developer talks and papers · Developer practice

First-hand development material about player experience, production, and game systems. Specific examples inform practice; a studio’s success does not prove its methods will work for every project.

Questions to ask

  1. Check the edition, mode, and date before generalizing a rule.
  2. Follow the numbered citations to see which claim a source supports.
  3. Separate an official developer intention from an observed player outcome.
  4. Ask what evidence would contradict the proposed explanation.
  5. Try the principle in a small prototype and describe what remains uncertain.

Sources checked October 19, 2026. Edition details appear in each study. Live-game rules can change; GTA VI remains a preview study.