You guys definitely accomplished what you set out to achieve but the nature of it being an MMO meant it wasn't for me.
I really liked the different levels of mutagens each having one downside but more upsides the rarer they got. It gave a lot of meaning to which ones you should keep. I did find the percentages a bit hard to parse. Maybe a number of up or down arrows in green or red would make it easier to understand at a glance.
I found the interacting with objects a bit unintuitive, it might have been my lag from Australia but it took me a while to figure out you had to select your target and be close enough then press 1 to chomp.
The juiciness and mutagen decisions still kept me entertained for a little while even though it was just me on the server.