Prior to launching Infinifactory this year, developer Zach Barth was perhaps best known for SpaceChem, a design-based puzzle game about fake science and cosmic horror.

At GDC 2013 Barth dug into the differences between SpaceChem and other puzzle games, offered advice on how to make your own design-based puzzles, and demonstrated how to build community features around them.

It's a good, timeless talk that also includes cautionary tales from the development of SpaceChem regarding appeal, difficulty, and tutorial design.

Barth also covers rapid-fire, post-launch insights and sales data, and now you can watch the video of his talk for free courtesy of the GDC Vault.

About the GDC Vault

In addition to this presentation, the GDC Vault offers numerous other free videos, audio recordings, and slides from many of the recent Game Developers Conference events, and the service offers even more members-only content for GDC Vault subscribers.

Those who purchased All Access passes to recent events like GDC, GDC Europe, and GDC Next already have full access to GDC Vault, and interested parties can apply for the individual subscription via a GDC Vault subscription page. Group subscriptions are also available: game-related schools and development studios who sign up for GDC Vault Studio Subscriptions can receive access for their entire office or company by contacting staff via the GDC Vault group subscription page. Finally, current subscribers with access issues can contact GDC Vault technical support.

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