User blog comment:Reapy The Reaper Leviathan/New Subnautica Challenge/@comment-35748056-20181124194505/@comment-31314436-20181125185546

You cannot beat the game, period. You need the Cyclops Shield Generator in order to construct the rocket, and to get that you need to craft the Cyclops.

Even if you get the Cyclops, if you don't get the knife, you can't get Creepvine Samples, used to make Fiber Mesh which is used to make the Radiation Suit to get the Neptune blueprints inside the Aurora. If you do get the knife, though, you need the scanner to scan for blueprints to get items.

Now, if you get "Nothing" and you get "Cyclops", you can beat the game, as you have everything necessary to do so.