Bonelab.v25.01.2023.part1.rar -

Open only part1.rar using a tool like WinRAR or 7-Zip. It will automatically pull data from the other parts to recreate the full folder.

.part1.rar indicates it is the first piece of a multi-part compressed folder. Important Instructions for Split Archives To use this file, you generally need to follow these steps: BONELAB.v25.01.2023.part1.rar

Likely the update released around January 25, 2023. Open only part1

The safest and most stable way to play BONELAB is through the Meta Store or Steam . BONELAB.v25.01.2023.part1.rar

If you are looking for mods rather than the game itself, use mod.io , which is the officially supported platform for BONELAB content.