Are Moon Sweepers mods safe?

What exists, without a download button

Nexus is where several Moon Sweepers mods are discussed, including one whose description is about bringing a vehicle through a map teleport. That description is evidence about the base game, which I use on the vehicle page, and it is also a reminder that a mod changes a save. A trainer or a Cheat Engine table edits values in memory. In a 16-player session those values are not only yours. I would not load one on a co-op save I care about, and I would not load one at all if the file came from a random repack.

Cheat-table sites and trainer brands rank well in search. Their presence is not a recommendation. Malware rides in the same installers that promise infinite cash. The cash you can explain is the dust you sold. If a mod is required to finish a badge, the badge list I checked does not say so.

What I would allow on a save

A cosmetic or a quality-of-life mod from a site you already trust, on a backup of the save, in a single-player session, is the outer edge. I have not re-tested any specific file, so I will not name one as clean. The official 1.1 preview does not announce Workshop support; no Workshop release is established by the cited sources.