The rules for this challenge are very simple: Unlock the entire tech tree up to level 5 in career mode *without upgrading any of your facilities*! Crappy runway and pad. Part count and vehicle mass limits. No patched conics, none of the usual stuff we rely on. Somehow you have to find and acquire enough science to make this happen with the rudimentary parts available. Do you have what it takes to be a KSP Caveman? Rules: -No mods. *EDIT* No mods that alter the gameplay. Mods that are used f