Some of you people love extreme challenges in this game. After all, some of us play Creative mode while you play Hardcore and try to kill leviathans. I have a challenge for you that should make things somewhat more difficult, at least at the end.
My challenge is to complete the game in Survival or Hardcore mode without building a Prawn Suit.
It sounds impossible, doesn’t it? I think you can do ILZ and Lava Lakes with Cyclops. The reason I think it can be done is that I died in the PCF aquarium (got trapped behind glass walls and ran out of O2) and had to swim from where I parked Cyclops in the Lava Pit across Lava Lakes to the PCF with only my SeaGlide.
To me the most challenging part of the entire game is the Lava Castle and that is using the Prawn. Without it you have to get through the caves and into the Thermal Plant using only SeaGlide. You will probably take damage from the heat and you will need to fight off Lava Lizards. There should be enough loose kyanite in the Lava Castle to complete the game.
You also have to collect enough ion cubes to get through all of the tasks because you won’t have a drill arm to use on large deposits. That means you need:
Enough to build 1 blue tablet and possibly multiple purple tablets
1 for the portal in Thermal Plant (optional but recommended)
1 to activate the incubator
6 to open portals in PCF (there are two ion cubes in the aquarium and you only have to open the portal that leads to the QEP)
4 to build ion power cells