Can't Game
Learn game dev patterns

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Ship games.

Test your game dev instincts with quick-fire challenges, and study patterns across game loops, physics, rendering, AI, shaders, and netcode.

free · no signup · 8 categories

Two ways to level up

A pattern quiz and a reference library.

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Pick the better game dev pattern in 10 side-by-side code challenges. Daily and weekly seeds included.

Learn

Patterns across 8 categories. Each shows the naive approach, the robust one, and why it matters.

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Can't Maintain

React component API design. Props, composition, and patterns.
Development

Can't Resize

Responsive design patterns. Media queries, flexbox, grid, and viewport units.
Development
TS

Can't Type

TypeScript patterns. Generics, narrowing, utility types, and common mistakes.
Development

Can't Orchestrate

Container orchestration patterns. Docker, Kubernetes, CI/CD, and Helm.
Development

Can't SEO

SEO best practices for Next.js. Meta tags, Open Graph, structured data, and more.
Development

Can't UX

UX design patterns. Typography, spacing, color, hierarchy, layout, and forms.
Design

Can't Explode

Chemistry challenges. Molecular stability, acid strength, bond energy, and electronegativity.
Science

Can't Branch

Git best practices. Commits, branches, merges, PRs, hooks, and repository management.
Development

Can't Test

Testing patterns. Unit tests, integration tests, mocking, test strategy, and CI.
Development
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Can't Query

API endpoint patterns. REST, GraphQL, WebSockets, auth, and error handling.
Development

Can't Ticket

Agile ticket craft. User stories, acceptance criteria, story points, and splitting work the team can ship.
Process

Open source

Built with Next.js, Material UI, and TypeScript. Contributions welcome.

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