That one is from Rodipet
They make great hamster houses. It just works out a bit expensive because of the £7 postage from Germany. The house itself cost about £17. It's probably quite easy to make one if you're ok with diy. It's basically just a box with compartments in and holes cut in and a lid.
That particular one is really big and I thought it would take up too much space in my 80cm cage, so waited till I got the bigger cage
This is the labyrinth house
https://www.rodipet.de/shop/haeuser/...x26cm-7cm.html
For an 80cm cage, something like this one might be better though.
It isn't a labyrinth house but has 3 rooms and 3 lift off roof sections. One roof section is rough granite so it helps keep their nails short as well, if the food bowl is on top.
https://www.rodipet.de/shop/haeuser/...monoporta.html
The main downside to the big one I have is the roof is huge to lift off and a bit awkward, but I manage