Because the game file was large (or to fit within specific file-sharing site limits), it was compressed and split into multiple pieces (part1, part2, etc.).
ColdSide is a first-person psychological horror game developed by AdroVGames set in a desolate, abandoned Soviet-era research facility in Siberia. The player uncovers a story involving a creature, audio recordings, and a claustrophobic atmosphere. ColdSide-CODEX.part1.rar
This file is the first chunk of that archive, waiting to be combined with its counterparts (part2, part3...) to reconstruct the complete game files for installation. Because the game file was large (or to