Inside Patrick Traynor's Philosophy — Designing by Discovery, Not Invention

Introduction

Patrick Traynor is an independent developer from southern California who built, almost single-handedly, the recursive Sokoban-like puzzle game Patrick's Parabox—handling the programming, game design, puzzle design, art and audio. Boxes contain their own areas, which contain more boxes, which contain their own areas. Released on Steam in March 2022, it won the 2019 IndieCade Developers Choice Award and the Excellence in Design award at the 2020 Independent Games Festival (Game Developer, 2023). It is a quietly cult title in Japan, yet the designer's own thinking is rarely read closely.

What draws me (Kizuki) to him is that he calls his work not invention but discovery. Lay his interviews side by side and he keeps describing recursion as a mathematical system, 'a corner of truth of the universe,' that he merely digs up and shows to others. This piece is not a walkthrough; it considers Patrick Traynor the designer—his philosophy, obsessions, failures and how he overcame them, dilemmas, and influences—through his own words.

Background — From IWBTG fangames to an accidental recursion

Traynor made games as a hobby for years, centered on the I Wanna Be The Guy (IWBTG) fangame community—which he describes as making 'charming, weird, raw games based around a precise set of physics and mechanics'—where he hosted collaborations and contests (Game Developer, 2020). In 2014 his puzzle game Clockwork Cat took 2nd in Ludum Dare 27. Patrick's Parabox would be his first commercial release.

The core came about by accident. As a spin-off of a stealth Sokoban his university (UC San Diego) game-dev club was making, he prototyped a two-player co-op mechanic where one player 'was shrunken-down and could sneak around inside of the walls and blocks,' then 'lost interest or got distracted.' About four years later he picked it up again to have something to show at a club meeting, partly because he 'thought it'd be a cool programming challenge' to support not just two layers but 'three, four, or any number of layers' (Game Developer, 2020).

Two breakthroughs followed. One night he hit on letting 'the players shrink and grow to switch between the layers,' and a friend showed him juner's Sokosoko, 'which has the recursive box containing itself idea,' which he then implemented in modified form (Game Developer, 2020). The system solidified and shipped on Steam in March 2022 (Steam).

Philosophy — Explore a corner of the universe, then hand over the joy

Across interviews, his most consistent conviction is that puzzle games are 'some kind of pure, mathematical-esque exploration of some little corner of the universe.' Naming Stephen's Sausage Roll, The Witness, Snakebird and Baba Is You, he says playing them gives him 'a sense of awe, and a sense of grasping at some corner of truth of the universe' (Game Developer, 2020). The goal of Parabox, accordingly, is 'to showcase the system and all its cool intricacies. And to let people have the same discoveries and joy that I had when exploring it myself' (ibid.).

His second pillar is approachability. He is candid about his taste: 'I enjoy easy, flow-y puzzles that still have interesting ideas, and I sometimes bounce off of difficult puzzles' (Game Developer, 2023). His guiding rule, then, is to 'make the easiest possible version of a puzzle, that still features the interesting idea or point, and still showcases it or teaches it with a lot of impact' (ibid.). His GDC 2024 talk likewise centers a 'system-centric' design that keeps difficulty approachable to broaden the audience (GDC 2024 talk).

A note from my habit of cross-checking: in 2020 he framed himself first as a programmer—'I'd call programming my main skill' (Game Developer, 2020). By 2023-2024 he speaks fluently as a puzzle designer, articulating rule-making principles and teaching heuristics. Not a contradiction—rather, I read it as the center of gravity of his self-definition quietly shifting from programmer to designer.

Obsessions — Natural behavior, one concept per puzzle, ruthless subtraction

His first recurring obsession is that the system behave naturally. On how he decides rules, he lists four principles: (1) prioritize the natural/organic behavior of the system, avoiding 'arbitrary choices or artificial simplifications'; (2) prefer the behavior that makes more interesting puzzles; (3) prefer intuitive behaviors that are easier to remember and reason about; (4) weigh implementation difficulty (Game Developer, 2023).

The second is density: one new concept per puzzle. He praises Stephen's Sausage Roll because 'pretty much each and every puzzle introduces some kind of new concept—no uninteresting rehashing' (Game Developer, 2020), and in his GDC talk describes building 'show levels'—levels with a single solution that spotlight a mechanic—so players learn each mechanic alone and in combination (GDC 2024 talk).

The third is ruthless subtraction. 'I was pretty ruthless when it came to iterating on puzzles. At times, big batches of puzzles were added; but at other times, big batches were removed,' he says, citing a quote he likes: 'Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away' (Game Developer, 2023).

Failures and recoveries — A steep curve, a nightmare animation, an inelegant rule

His first stumble was the difficulty curve. Early on, 'there weren't many introductory puzzles and the difficulty curve was way too steep, so people got lost with the harder recursion concepts.' Through repeated playtesting he added levels to solidify or reframe a concept where people struggled, and sometimes made levels optional or removed them, smoothing the flow over time (Game Developer, 2020).

The second was the smooth shrink/grow animation. When a Twitch viewer first suggested it, he had 'dismissed the idea as too hard to program.' Tackling it 'was a nightmare'—edge cases such as depth sorting, stacking transformations, and interactions with recursive mechanics. He finished it anyway, and it ended up making 'it easier to understand the core system' and increasing players' appreciation of it (Game Developer, 2020).

He is equally candid about reworking rules. In an early implementation, entering a box checked every tile of the relevant edge, closest to the middle first; realizing this was 'pretty inelegant' and 'an awkward rule to learn and remember,' he changed it to the current center-only behavior. 'There are definitely a few awkward spots, but they're pretty rare to encounter, and I ended up avoiding them for the most part,' he adds (Game Developer, 2023).

Design dilemmas — Ease vs. understanding, discoverer vs. author

The dilemma he names most clearly is balancing approachability against depth of understanding. He accepts a trade-off—'I was okay with people totally stumbling upon a solution and not understanding it at all, so long as they properly grappled with that same concept in the immediately following puzzles'—while admitting that 'this philosophy definitely isn't watertight—people do end up underprepared at points, and sometimes don't fully understand certain concepts even after completing the game' (Game Developer, 2023).

The second is authorship. He splits the game in two: the core—'a sort of mathematical system of recursive blocks that just inherently exists in the universe'—and the 'presentation' around it: visuals, audio, the puzzles and how they teach, how edge cases resolve, which areas to focus on. 'I can't take credit for the core system, but I am proud of much of the presentation that I've worked on,' he says (Game Developer, 2020). Discoverer, not inventor: a self-definition that underwrites both his humility and his care.

Length, too, gave him pause. He followed 'that old philosophy that a game should be as big as it wants to be,' allowing that 'it's possible the game is a little verbose, but on the flip side there may also be some untapped potential for making more complex puzzles' (Game Developer, 2023).

Influences — Works and a talk he names directly

His acknowledged influences are explicit. The largest guides to his design are Stephen's Sausage Roll (Stephen Lavelle), The Witness (Jonathan Blow), Snakebird, and Baba Is You (Arvi Teikari). The name Parabox itself, he reveals, 'is inspired by the game Stephen's Sausage Roll' (Game Developer, 2023).

His borrowings are specific. The recursive core came from juner's Sokosoko (Game Developer, 2020), and the 'Unlock all puzzles' option, he says, 'I took from the game Cosmic Express!' (Game Developer, 2023). On the principle of preferring natural behavior, he names a source: 'The talk Truth in Game Design by Jon Blow influenced me a lot' (ibid.).

Underneath lies a respect for grid puzzles as such. He analyzes why Sokoban-likes are so fertile: 'discretizing positions and state to the square grid, and interacting with objects in a physical manner on that grid, ends up being a versatile base for puzzle systems with rich interactions, while at the same time being intuitive for us humans to reason about' (Game Developer, 2023).

Kizuki's reading — The ethics of a discoverer

From here, this is my (Kizuki's) interpretation, one step beyond his own words. I read the heart of Traynor as the ethics of a discoverer. He refuses to say he invented the system; he insists he merely digs up something already present in the universe and guides others through it. This humility is not mere modesty—it is the very criterion of his design decisions, because his first principle, 'prioritize natural behavior,' is an act of kneeling before the logic of the object rather than the convenience of the author.

And this stance dovetails beautifully with his other face: approachability. Awe is usually the reward reserved for those who clear the hard parts. But Traynor lowers the floor to lead more people to the threshold of awe, accepting that some will slip past understanding on the way. Before a fine discovery, after all, everyone is equally a beginner. I read Parabox as a quiet argument that wonder and ease need not be opposed—and that the designer's job is to be a good guide to a place that already exists.

Closing — Where to start

The best way in is the game itself: try solving even just the first few dozen levels of Patrick's Parabox by hand, without hints or the 'unlock all' toggle. You will feel, in your hands rather than your head, the 'one concept per puzzle' density and the unhurried teaching.

Tracing his influences is rewarding too. This site has studies of the designers he names—Stephen Lavelle, Jonathan Blow, and Arvi Teikari. Parabox's design philosophy stands right at the intersection of the three. From here, that is where I would go next.

Sources

Primary sources quoted and referenced in this article:

・"Road to the IGF: Patrick Traynor's Patrick's Parabox," Game Developer (formerly Gamasutra), Mar 16, 2020 (interview by Joel Couture) — gamedeveloper.com

・"Designing the mind-bending puzzles in Patrick's Parabox," Game Developer, Jan 18, 2023 (interview by John Harris) — gamedeveloper.com

・GDC 2024 talk "System-Centric Puzzle Design in 'Patrick's Parabox'" (by Traynor; official YouTube) — youtube.com / GDC Vault

・Traynor's announcement of the talk (X / @clockworkpat, 2024) — x.com

・Patrick's Parabox Steam store page (release date, etc.) — store.steampowered.com