Yes, the game can be played on Steam Deck, ROG Ally, and Legion Go, but the controls are all very different between the three devices since Manor Lords doesn't have controller support. If you want full control, you should consider connecting your gaming handheld to a docking station and then plugging a keyboard and mouse into it. Additionally, since Legion Go has FPS mode which allows the right controller to act like a mouse, it is the easiest handheld to play Manor Lords on.