Hello!
Yes the steam demo will be updated, we just need to clean up quite a bit and are currently busy with the next update. So the steam demo is currently a bit behind.
We have a quest log in the game, but we are still in the testing phase so not all quests are in that system yet, we are adding more quests as we release new versions.
We agree that the first planet is a bit too complicated as the first area and tutorial, reason why we are fully remaking the first planet for the upcoming update. The old legacy content (Enemies and Scenes can be found in the gallery later on) and the new enemies and scenes will be in the new tripteen dungeon.