Very engaging encounter system (did not expect that) as well as your achievement system. I'm not a reader myself so I would have liked more stuff happening either in the background while clicking or the upgrades affecting visuals, however I still enjoyed the upgrade types.
I do wish there was a heavier emphasis on the jam's Inter-dimensional theme but I do see the link between the theme and your game.
Good call on the auto-save system as it makes it more respecting of your time. This makes me want to come back to it and see it through to the end.