Man you gotta read The Property of Hate - It's not on tapas, and I haven't read it in a long time so I dunno if it's finished/abandoned/still going - but what's there is some of the best dream-exploration stuff I've read.
http://thepropertyofhate.com/
this doesn't quite fit your request but Hadephobia has characters exploring a lot of dream-like environments. (it's also just really great)
Also my first minicomic is based on an old dream journal entry
I guess for my request I wan't some fun retro-futuristic space age stuff? I don't ever find enough sci-fi.