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Comparison

GameMaker vs OpenAI Codex

	GameMaker	OpenAI Codex
What it says it does	GameMakerMake a game with GameMaker, the best free video game engine. Perfect for beginners and professionals. Learn to build your own 2D indie games with our simple tutorials.	OpenAI CodexOpenAI's coding agent. Codex works in a desktop app, on the web, in a CLI, in IDE extensions and on iOS, can run tasks in cloud sandboxes, and reviews GitHub pull requests.
Pricing	GameMakerFree for non-commercial use (all desktop, web, mobile and GX.games exports, no watermark); Professional $99.99 one-time commercial licence; Enterprise subscription (monthly or yearly) adds console exports and source code access (official)	OpenAI CodexIncluded with ChatGPT plans: Free $0 and Go $8/mo (desktop app, lighter model); Plus $20/mo (web, CLI, IDE, cloud code review); Pro $100, $200 or $500/mo; Business $25/user/mo billed monthly; or pay API rates with an API key (official)
Website	GameMakerhttps://gamemaker.io/en	OpenAI Codexhttps://chatgpt.com/codex/

Which tool for which job

GameMaker wins when you want a proven 2D engine with a one-time commercial licence and no royalties.

OpenAI Codex wins when you want one subscription that covers chat and a coding agent across terminal, IDE and cloud.

Descriptions in the table come from each vendor's own site. This verdict is a fit call from those official pages as of 4 November 2026, not a shared benchmark or a hands-on score. Prices change, so confirm the pricing row on each tool page. How we review tools.

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