If you are looking for the conceptual "paper" behind the game’s design, it generally covers:
For the most accurate "develop paper" (the actual developer’s notes), you should check: FutagenesisUnveiled-v0.03a-pc_220918.zip
The build is optimized for Windows/Linux environments, likely built using the Ren'Py or Unity engine, which are standard for this genre. Key Development Pillars If you are looking for the conceptual "paper"