improve this prompt for me faithfully, everything must be do...

Prompt

improve this prompt for me faithfully, everything must be done so its failure proof and modular, so errors can be detected effectively and fast. Everything must be determineable in a way an LLM can best understand.: """Code a fully working 3d three.js open world survival game with a plants vs zombie theme. full and accurate physics simulation, make sure its fully playable and no failures at all by running simulations, as in real determinable simulations, that is a must. Put in gargantuan reasoning effort and ensure the design is beautiful, not generic. It is strictly a private, non- commercial, non-public project, so everything can be used, it must be plants vs. zombies. It should includea a hand designed, immersive open world, match the exact art style, and have multiple plants you can play and unlock, you play as the plants, its basically an open world game, diffferent variants of plants, not just shooters, also melee and more creative abilities, plants must match the art style and look beautiful, all hero asset tier, multipel different zombies, so its fun and challenging, reward loop with upgrades, places, and so forth. Run some parralell image gen while you work if that is possible also, for textures and so forth.""" answer in plain html page to this, no ui design needed for this answer itself