UPBGE

Verdict: Open-source game engine built into a Blender fork, so you model, animate and make interactive games in one app with logic bricks or Python. No built-in AI; Python game logic can be written with an AI coding assistant.

Free (open source) · Official site: https://upbge.org · source checked 2026-10-22 (HTTP 200)

GitHub repo · ★ 1.8k stars (as of 2026-10-22) · More open-source AI

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