EN World has published a double review of M-SPACE and M-SPACE Companion.

“Combined with vehicle and starship construction, alien life form creation, world building, and circles (organizations) from M-SPACE itself I was impressed with the range of options and tools provided to a GM.”

Read the full review:

https://www.enworld.org/threads/strange-aliens-and-fantastic-planets-abound-in-m-space-and-the-m-s-companion.673373/

And if you have any questions for the reviewer - Charles Dunwoody - just add a comment below the article.