Book · 2013
Theory of Fun for Game Design
by Raph Koster
Raph Koster argues that fun is just the brain's name for the feeling of learning something new, whether the game is Tetris or chess.
What does Reddit think of Theory of Fun for Game Design?
Raph Koster's book barely gets discussed on its own; it gets cited, usually inside somebody's gamedev syllabus. The ↑23 and ↑22 r/gamedev comments both shorten it to 'A Theory of Fun' and set it next to The Art of Game Design and Game Balance, no ranking implied. The ↑40 comment is just the title, nothing else attached. Two excerpts break from that pattern to actually argue something: the ↑21 comment states Koster's whole thesis, that fun is the brain's reward mechanism for learning and that this holds across every genre, and the ↑49 comment backs it up by widening what 'fun' covers past winning, happiness, or a good ending, down to whether the mechanics are worth exploring. r/gamedev carries nearly all of the tracked mentions; a single ↑132 r/cscareerquestions reply and one r/webdev appearance barely register. Nobody in the sample argues with Koster. They just keep recommending the same two ideas.
Community feedback & reader fit
Themes
- · Fun defined as the brain's reward for learning
- · Fun decoupled from winning, happiness, or a good ending
- · Recurring citation in gamedev syllabus threads
- · Known interchangeably as 'A Theory of Fun'
Common praise
- + The ↑21 comment sums the whole book in one line: fun is the brain's reward mechanism for learning, and that applies across every genre.
- + The ↑49 comment expands the definition past winning or a good ending; fun games just need mechanics worth exploring.
- + It keeps making the same reading-list cut, appearing in r/gamedev's ↑23 and ↑22 comments next to The Art of Game Design and Game Balance.
Common criticism
- − Half the mentions are bare title-drops; the ↑40 comment is just the title with nothing attached.
- − Nobody in the sample pushes back on Koster's fun-as-learning thesis, so what looks like recommendation is really just repetition.
- − The ↑65 comment buries it inside a broader syllabus with Rules of Play, Players Making Decisions, and Game Feel rather than singling it out.
Who it's for
Trying to answer what actually makes a game fun instead of chasing a genre checklist? The ↑21 comment's one-line answer, learning is the reward mechanism, is Koster's whole argument, and it applies to any genre per that same post. Building a syllabus for a design role? r/gamedev keeps stacking it next to The Art of Game Design and Game Balance. Want a technical rundown of game feel or genre-specific mechanics instead? The ↑65 list has better-targeted picks; this book is answering a different question.
Mentions over time
Top subreddits
Which Reddit comments matter for Theory of Fun for Game Design?
The most relevant excerpts across the subreddits where this book is mentioned — opinionated, argued takes first, then top-upvoted mentions. Click through to read the full thread.
“At the time of writing this you have 40 replies and not one that actually answers your question, so I'll try to do that. For reference I have a few years in the gamedev industry, both in programming and game design, currently working for AAA studio as Technical Designer, which is a bit of a middle g…
“* Rules of Play * Players Making Decisions * Game Feel…
“The Art of Game Design. I like A Theory of Fun by Koster. Game Balance by Schreiber may be useful if you're looking into systems design specifically.
“"A theory of fun for game design" by Raph Koster is a book that you can buy and read right now, and you should, but to summarise... Learning makes games fun. This is an answer that applies to all genres and all types of games. Simply, fun is the brain's reward mechanism for learning and developing …
“A Theory of Fun for Game Design Book by Raph Koster
“Raph Koster's "A Theory of Fun for Game Design" is the OG. I'd also highly recommend "The Art of Game Design: A Book of Lenses" by Jesse Schell. Both have the same premise of "Games are such a young medium, that we don't have complete unified theory about how they work. So here's a compilation of …
“While there is no single one, Game Programming Patterns by Nystrom is a book I'd recommend every game developer at least skim through. I'll also +1 'A Theory of Fun' and Jesse Schell's book of lenses.
“I recommend a few books. The Theory of Fun and or Game Design a Deck of Lenses. These books helped me with what makes a game fun and what I could do for designing games.
“I teach game design and this would pretty much make my list except for the Game Writing one, which I can't speak to. I'll add a few extras but all of these are on my shelf and though I refer to some of them more than others (Rules of Play, A Theory of Fun and The Art of Game Design in particular) th…
“Have you read any books about fundamentals? Games in general, not just videogames. "Theory of fun" by Raph Koster is pretty interesting as a change of perspective. From "how do I make a fun game" to "why are games actually fun". After that try to make "game design" less abstract by digging into wh…
“Theory of Fun by Raph Koster. This one fundamentally changed the way I viewed games and game development.
“Yes, it's also one of my favorite books. I also appreciate "Theory of Fun for Game Design" by Raph Koster. I particularly like the perspective that games are essentially systems that teach us patterns. However, it does lack a bit in terms of motivation and elements like surprises or exploration. The…
“Just like programming, game design takes some learning, time. There are a few really good books out there, my favorite one would be "A theory of Fun" by Raph Koster. I'll edit this post later with my study list, currently don't have the time!
“The Theory of Fun for Game Design claims “fun is learning” Which I agree with for the most part, learning other player behaviors, learning how to get good at a mechanic, learning creativity.. It’s very vague, but there’s definitely fun games that hardly employ learning like horror or sillier gam…
“It isn't just that no one knows how to teach it yet. I can give you two books that could serve as textbooks for a core game design class: The Art of Game Design by Jesse Schell and A Theory of Fun by Raph Koster. The lingo is all there, for example, "ludonarrative consonance/dissonance". Check out t…
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What else does r/gamedev read?
Other books mentioned in the same sub, ranked. Shared-sub overlap with this title breaks ties.
Theory of Fun for Game Design — frequently asked
What is Theory of Fun for Game Design actually about?+
Koster's whole thesis, per the ↑21 r/gamedev comment: fun is the brain's reward mechanism for learning, and that holds across every genre. The ↑49 comment adds the other half, that fun doesn't require winning, happiness, or a good ending, just mechanics that are interesting to explore. Those two comments are most of what the sample actually argues, rather than just cites.
Is Theory of Fun for Game Design the same as A Theory of Fun?+
Yes, same book. The ↑23 and ↑22 r/gamedev comments both shorten the title to 'A Theory of Fun' by Raph Koster, while the ↑40 comment uses the full 'Theory of Fun for Game Design.' Reddit isn't consistent about which version it types, but every displayed excerpt points at the same Koster book.
Do game developers recommend Theory of Fun for Game Design on Reddit?+
Yes, repeatedly, though rarely with much elaboration. r/gamedev's ↑40 and ↑23 comments are essentially the title dropped into a list, while the ↑21 comment is the exception that argues for it directly, calling the fun-as-learning idea an answer that applies to all genres and types of games.
How does Theory of Fun for Game Design compare to The Art of Game Design?+
Reddit treats them as companions, not rivals. The ↑23 comment lists Theory of Fun for Game Design alongside The Art of Game Design and Game Mechanics: Advanced Game Design with no ranking between them, and the ↑22 comment pairs it with Game Balance the same way. Nothing in the sample argues one replaces the other.