At its core Re:Legend is an excellent monster farming simulator; however, a slew of performance issues, game-breaking bugs, and poor optimisation make it impossible to recommend
Dark and Light was a great idea in 2006 and a decent idea in 2017; however, in 2022, there is just too much competition in the genre for it ever to be anything more than near-complete failure.
Although innovative, Darwin Project failed to attract a sustainable audience before and is essentially dead on all platforms.
Spacelords is weirdly sexual to the point of being distracting, and I feel this aesthetic is largely responsible for its low player count and lack of wider community acceptance.