มีเงินช่างดีเสียจริง!

You can achieve this by stockpiling your cosmic fragment and not spending any during a run. Alternatively, get lucky with the Ruan Mei random event in Simulated Universe.

A reference to the play line of Reno Jackson in Hearthstone; "We're gonna be rich!". The achievement is earned by having 1024 or more cosmic fragments in Simulated Universe so basically you are rich. - Credit: Frosty