As the title says, would it be possible to have a tickbox to be able to prevent certain creatures from showing up in the altar sacrifice interface? I'm thinking that this could be something that appears in the creatures tab, next to the heal button of each creature maybe. New creatures would by default be unhidden.

I always live with the fear that I'll accidentally (and permanently as fork) sacrifice an important critter.

Same idea under a different concept:

 

 

There are some plans for some of these things.

"Favourite creatures" and a "saving of rare creature spirits"

What do people think of favouriting special or your rare creatures?

I believe this would be a fantastic idea as I have come close to selecting the wrong creature to sac.

Safety Vault Creature?

14 hours ago, Chewett said:

What do people think of favouriting special or your rare creatures?

I'd love it. Some sort of Lock we can tick at the top right of each crit image, locked lock means no sacrifice :3

18 hours ago, Chewett said:

What do people think of favouriting special or your rare creatures?

This is a "must have tool" to avoid sacrificing the unwanted creature, as well to facilitating the lives of those who have countless creatures (you favorite most of them, then only those that really are available for sacrifice will appear); Separating only the rare ones will probably not have the same effect for everyone, after all, most players have high level common creatures that have no interest in sacrificing ...

or if that is a dificult task, maybe You activate a button on the creature page, and then only the creatures that are marked will appear, like hide all, and you pick one by one what will show up (or at least appear 1st in relation to the others, something like a new selection method of creatures, but you choose individually) and this is what will show when you goes to a altar.