Sandbox Survival MMO Life is Feudal: MMO Goes Free to Play
Life is Feudal: MMO, the aptly named 'MMO' version of Life is Feudal, officially went full free to play today. The core gameplay elements with Life is Feudal is similar to sandbox survival games like Rust and Ark: Survival Evolved, but with much larger scale and more persistent elements. I suspect the free to play transition happened because of the game's declining playerbase, which currently averages ~500 users online at any given time, down significantly from over 3,000 last year.
Life is Feudal: MMO - Open Beta Test Trailer
Further reading: Official announcement