Question: is the ix easter egg soloable?
Answer: To kick-start the EE you're required to build the Pack-a-Punch (PaP) and Death of Orion Wonder Weapon fairly early in the game. Although the PaP is straight forward enough, the Wonder Weapon does have a multiple step process. For those of you that like to play SOLO - I can 100% confirm that this EE is possible SOLO.