Huh Well spotted. I guess HelloGames removed it from the tree for some reason. It's automatically there nowadays anyway. It's free & you start the game with it. You'd think they'd have kept it on the tree though - there's other free & auto-unlocked stuff on them.Anyway, maybe go Zendesk it, in case it was unintentional on their part.
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Please be aware that this week is fully booked for me, and I am also recovering from a spinal injury. As such, updating to Relics 5.60 will likely occur over the UK Easter holidays 5th - 20th April, though I may lay some groundwork before then. Apologies for the delay.
Atlantideum isn´t included in the resource list or on the refining infographics
On the latest (as of 12 Feb 2025) Tech Tree Infographics, I cannot find the Terrain Manipulator anywhere.