As you can see from the gif, I ain't no world and level designer, but this mockup will do its job.

I added some colliders to the scene, so you can't walk over everything, but then I had to switch to rigidbody movement in order to use these collision detections.
There are some major glitches, but I think I will get them in time (I fixed a bug today where you couldn't pick anything up if you walked over a tool - this is a con of a state machine: if you fuck up states, everything is fucked up)

Working in Unity is easy and comfortable, but I hope more features will be added over time. Also, someone should add a designer to my project :D

Changy changy changes:
https://github.com/Papiertig0r/Alchemy/commit/a97cb7f3d9c5ff751ea2ad907eca8f78a332c378