Ok. The best I was able to do was put the insulation blocks, and then the cabins, and just ignoring everything else. But I'm not sure if there's a better configuration.
You can put blocks behind the cabins for example to absorb some heat (and add some thermal inertia). Or trying sticking the cold load to one of the insulation.
Thank you for your fedbacks ! They are very useful, if I wish to push further that game !
Going up is intended, indead ;-) You can use it to cool some material down before diving for example. But beware of not freezing, though !
There is no leader board yet. But next version should have one. Or do you mean recording the result localy (just for you) ? It might be interresting, too... 🤔