When you extract part01.rar using software like WinRAR or 7-Zip, the program automatically pulls data from part05 and the other segments to reconstruct the full v0.8 game folder.
The game has faced a turbulent development path; ensure you are looking for the most recent build, as v0.8 is now an older version of the alpha. Dead.Matter.v0.8.part05.rar
Version 0.8 was a significant update in the Dead Matter development timeline, often associated with overhauls to the map, performance optimizations, and the introduction of new survival mechanics. Critical Safety & Legal Note When you extract part01
On its own, part05.rar cannot be opened or executed. To access the contents, you must have all preceding and succeeding parts (e.g., part01 through partXX) in the same folder. Critical Safety & Legal Note On its own, part05
v0.8 (This refers to a specific "Closed Alpha" build released during the game's development cycle). Format: RAR Archive (.part05)
Dead Matter is primarily distributed through Steam via keys provided to original Kickstarter/Indiegogo backers.