- on koramaup.com [4GB]
- on 1cloudfile.com [4GB]
- on bowfile.com [4GB]
- on 1fichier.com [4GB]
- on doodrive.com [4GB]
- on hitfile.net [4GB]
- on megaup.net [4GB]
- https://megaup.net/22a8e95d8b324b45b982d30b3efa6dfa/Serum.The.Big.One.Early.Access.part1.rar
- https://megaup.net/a8548e9e99496071792c914881d570c2/Serum.The.Big.One.Early.Access.part2.rar
- https://megaup.net/9a0c5ba65d75b948a695519cedd6616e/Serum.The.Big.One.Early.Access.part3.rar
- https://megaup.net/3f7074c44bba8ba9fb85b1e804fac42e/Serum.The.Big.One.Early.Access.part4.rar