Dimillian details building Dark Veil game and custom engine with Codex

Dimillian · x · 2026-10-14

Well-known iOS developer Dimillian (Thomas Ricouard) published a long-form article walking through how he built Dark Veil — from first concept images to a playable game on Mac, iPhone, and the web — including its custom engine, using OpenAI Codex with his personal $200/month Pro subscription. A rare hands-on case study of AI-assisted game development.

Related event: Developer Builds Cross-Platform Game Dark Veil with Codex in 470 Commits(2 posts)→

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