How to Open the Large Gate in Subnautica
Get an Alien Tablet (purple, orange, or blue) and insert it into the terminal next to the gate. Voila, open sesame!
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To open the large gate in the alien bases, you need to find and use an Alien Tablet of the right color (usually Purple, Orange, or Blue). Happy diving!
Whenever I come across one of those big alien gates, I always keep a Purple Tablet handy. You can usually scan for more if you run low.
Depends which gate. Usually it's an alien tablet. Purple is the most common.
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