Houseplant identification help please!

[Numerodos]

I've managed to kill this lovely little plant and would love to replace it but don't know what it's called. It's like a succulent or cactus type thing but no thorns. The plant identification app on my phone isn't helping
Thanks!

It's Orbea variegata (used to be called Stapelia variegata) sometimes called the carrion flower due to the dreadful smell of the flower. Did you flower it? They are fleshy five lobed flowers patterned in cream and brown, mimicking rotten flesh, but very attractive in spite of that. And they really stink! It's a member of the Asclepiadacea family originating from South Africa. It requires a well-drained potting mix, and as much light as you can give it (yours looked a bit etiolated - sun-starved).
Good luck with a replacement!

This is a pic of mine taken four years ago:

Wow! The flower is fabulous..I have never seen one.

Aha! Thanks so much. I had it in quite a dark room so that could be what went wrong. It never flowered... How bad is the smell?!?

They do smell pretty bad tbh, the Asclepiadacea family all produce flowers that resemble rotting meat to attract flies to pollinate them. (Sounds quite delightful, doesn't it!) some (the Huernias) have almost no smell, but most of the Orbeas do. They come from very arid areas, and flies are probably the predominant pollinators, so that's why they need to attract them. They have a very complicated method of pollination, but the flies seem to manage, and sometimes lay eggs in the flowers, but the larvae don't survive as there is no food for them.
I'll try to attach a few pics of Huernias if my IPad behaves...

Oh goodness- those flowers look positively evil / obscene