Talk:The Ancient Ruins/@comment-31735113-20170413211246/@comment-4955085-20170413220959

You need to have opened either the Moss Blanket or the Indigo Quarry first. Then, from there, there's a slime door that leads you to the Ruin's entrance, a large Slime Door that requires a bit of puzzle solving to crack open. Be aware, you do need access to slimes in both the Moss Blanket and the Indigo Quarry, so you will need to use at least 3 Slime Keys. (or be really good at jetpack skips, but I prefer to encorage actually unlocking the areas legitimately ;P )