Farm sims are surprisingly popular, and I noticed when checking other virtual pet apps that most of the others added features commonly found in those, allowing to essentially do virtual nest-building... though if I were to make a virtual pet, I'm thinking something minimal; Digimon VPets only required that you check up on them for maybe five minutes a day, maximum, spread over several seconds-long sessions, and you could only do like two basic things with them. But I'll need to play around with ideas!

Yden! That was what that thing was called! I'd forgotten all about that... Interesting that you played it a bit! (Now I'm wondering whether to go back to that idea instead...!)