, ▁doors ▁and ▁windows ▁built ▁with ▁the ▁resources ▁l itter ed ▁throughout ▁the ▁world — which ▁are ▁earned ▁as ▁they ▁progress ▁and ▁gain ▁levels , ▁then ▁collect ▁the ▁necessary ▁materials ▁to ▁make ▁them . ▁These ▁components ▁can ▁then ▁be ▁craft ed ▁and ▁placed ▁in ▁the ▁world . ▁Play ers ▁can ▁create ▁any ▁structure , ▁as ▁long ▁as ▁they ▁have ▁the ▁log istics ▁and ▁resources ; ▁the ▁struct ural ▁integrity ▁of ▁the ▁building ▁is ▁comprom ised ▁when ▁the ▁pill ars ▁and ▁found ations ▁are ▁destroyed . ▁Struct ures ▁can ▁be ▁built ▁from ▁various ▁t iers ▁of ▁materials , ▁with ▁better ▁t iers ▁providing ▁more ▁protection , ▁but ▁cost ing ▁more ▁resources ▁to ▁create . ▁Play ers ▁start ▁out ▁by ▁creating ▁that ch ▁structures , ▁then ▁moving ▁on ▁to ▁wood , ▁stone , ▁metal , ▁and ▁finally ▁tek , ▁a ▁fut ur istic ▁and ▁late - game ▁material . ▁There ▁are ▁also ▁glass ▁structures ▁that ▁can ▁be ▁used ▁to ▁gain ▁a ▁green house ▁effect ▁on ▁plants ▁grown ▁inside . ▁Ad obe ▁structures ▁block ▁heat ▁from ▁outside ▁for ▁an ▁ideal ▁temperature ▁in ▁the ▁building . ▁Play ers ▁can ▁also ▁craft ▁items ▁in ▁the ▁game , ▁such ▁as ▁weapons , ▁by ▁collect ing ▁the ▁resources ▁and ▁technology ▁required ▁for ▁craft ing . ▁In ▁addition , ▁players ▁can ▁craft ▁and ▁attach ▁access ories ▁to ▁their ▁weapons , ▁such ▁as ▁a ▁scope ▁or ▁flash light ▁for ▁a ▁p istol ▁or ▁machine ▁gun . ▁ ▁Development ▁Pre lim inary ▁work ▁on ▁Ark : ▁Sur v ival ▁E vol ved ▁began