If you are looking for a review of the game content corresponding to that version (which is an early-access build from 2021), here is the consensus:
: The tech tree is massive. You constantly feel like you are just one upgrade away from becoming significantly more powerful. File: Dysmantle.v0.6.8.16.zip ...
: It satisfies a very specific "cleaning" or "completionist" itch. Unlike many survival games, there is no hunger or thirst meter, so you can explore at your own pace. If you are looking for a review of
Verify if the file size matches the known size of the game (usually around 1–2 GB for newer versions). Unlike many survival games, there is no hunger
If you want to experience the game, the modern version is vastly superior in terms of performance and content. The early v0.6 builds were essentially a "proof of concept" compared to the full release.
: This is an extremely outdated version. The game has since left Early Access and is currently on version 1.4+ . Using a v0.6 build means you are missing years of content updates, bug fixes, and the ending of the game.
Check for "false positives" in the comments of the site you found it on.