Cool game guys! Love the characters and that you added voice recording for characters, more games should explore that option. Yabbadub studio tells me that you guys are experienced in this audio recording stuff. Keep up the good work!
Here is one idea I would personally test to see if it improves the game: Think if the WASD & E controls are necessary for this game. The game might work with only mouse, point and click style. It is kinda idle / watch workers style game, so is it necessary for player to start the level slowly moving to intractable and holding button? I you want to keep the wasd movement, you could try tap E for interaction instead of hold E, then show the duration of action on animation or UI. You have many levels there which is good thing, but if the levels start sluggishly players might drop, that’s why I would explore these options.