This is not a blueprint patch, but a client-side tweak. By navigating to saved_games/current_world and setting "heat_damage": false and "collision_damage": false , you can build a rocket that survives anything. Combine this with high-clip engine clusters, and you have a functional (albeit cheaty) nuke. Warning: The game will mark your save file as [Modded] and disable achievements.
The realists argued that the nuke blueprint broke the core educational value of the game. SFS is meant to teach real orbital mechanics—delta-v, staging, Hohmann transfers. A single-stage-to-anywhere nuke rocket bypasses the entire tech tree and makes Mars landings boring. sfs nuke blueprint patched