Fun concept, needs work.
Idle Trillionaire is fun if you are like me and you enjoy grindy clickers. It has a fun concept where you click and acquire cards with humorous titles and taglines that build a life-narrative around your character as you progress though the game.
What Idle Trillionaire is not, is an idle game. While the game is open and on your screen, in game time progresses one hour per real-life second, and the two game resources are gained once every hour tick (money) and once every 24 hours (happiness). When the game is not open, this slows down to an impossible 2 game hours per real-life hour. In other words, if you left the game closed for a week, you would only progress what would have taken less than 6 minutes of active time.
The game requires hours of active play to reach the first prestige, and a lot of tapping on buttons that are too small (at least for these hands) to find a comfortable position doing this on my iPhone XS Max. It is not a game where you will progress without actively engaging with it.
I enjoyed it because I am a masochist who enjoys demanding clickers. People who are looking for an idle game should not buy this because it isn’t one. If these issues were addressed, I’d be happy to change my review, but as it is now I don’t believe that Idle Trillionaire provides enough to the player for what it demands both in time and financial investment.