Riverside Files - Idle Tycoon

It's built around the thing your game has that the genre usually doesn't:

There is no upgrade list, there is an office — you buy equipment by tapping the equipment.

It also leads on the four specialties competing for roster share, and is loud about twelve hours of offline earnings at the full rate with no decay, since DECISIONS.md records the competitor's decaying window as their most-complained-about behaviour.