The Rise of the Giant Free with new for Dead Cells has 9 achievements.
Absorb your fifth Boss Stem Cell
You beat the Giant!
You beat the Collector!
Reach the Cavern for the first time.
Reach the Guardian's Haven for the first time.
Reach the Astrolab for the first time.
Reach the Observatory for the first time.
You beat "The Giant" without taking a single hit!
You beat "The Collector" without taking a single hit!