You can unlock an additional room for even more coin laundry machines by interacting with the tablet next to the PC.
There isn't a single "Laundry Sim" game, but rather two very popular titles: (on Roblox) and Laundry Store Simulator (on PC/Mobile). Both have specific strategies and "hacks" to maximize profits. Laundry Store Simulator (PC/Mobile) LAUNDRY SIM HACK
Prioritize the Coin Laundry early on; it is a major income driver even into the late game. Laundry Simulator (Roblox) You can unlock an additional room for even